Medio ambiente fetal

ALVAREZ, H. y CALDEYRO-BARCIA, R.: Contractiity of the human recorded by new methods”. Surg. Gynec. Obstet. 91: 1,1950.

ALVAREZ, H. y CALDEYRO-BARCIA, R.: "Studies on the contractility of the pregnant uterus. Proc”. First Wld. Congr. Fértil, Steril, Mayo 25-31, 217, 1953.

ALVAREZ, H. y CALDEYRO-BARCIA, R.:"La contractilidad uterina en el desprendimiento prematuro de la placenta". Arch. Gynec. Obstet. 9:1, 1951.

ABBAS, T. M., y JOVEY, J. E.: "Proteins of the liquor amnii". Brit. Med. J., 1 : 476, 1960.

ABRAMS, R. Y., y ABRAMS, J.: "Vaginal cytology during the final weeks of pregnancy". Acta Cytol. 6: 359, 1962.

ABRAMOVICH, D. R.: "Fetal factors influencing volume and composition of liquor amnii". J. Obst. y Gynec. Brit. Comm. 77: 865, 1970.

BONSNES, R. W.: "Composición del líquido amniótico". Clin. Obst. y Gynec. 9: 440, 1966.

BEVIS, D. C. A.: "Blood pigments in hemolitic disease of the new born johst". Gynec. Brit. Cwlth, 63: 68, 1956.

BEGNEUAND, W. P., HAWES, T. P., MICKAL, A., y SAMUELS, M.: "Amniotic fluid creatinine for prediction of fetal maturity". Obstet. Gynec. 34: 7, 1969.

BIEZENSKI, J. J., POMERANCE, W., y GOODMAN, J.: "Studies on the origin of amniotic fluid lipids". Amer. J. Obstet. Gynec, 102: 853, 1968.

BRONSENS, T. A.: "Cytological study of amniotic fluid with nile blue sulphate staining". Acta Cytol. 10: 159, 1966.

BRONSENS, F. A., y GORDON: "Cytology of amniotic fluid. A new test for fetal maturity". Obstet. Gynec. 30: 652, 1967.

BLUTH, I.: "Estudio prenatal del feto". Clin. Obst. y Gynec. 9: 21, 1966.

BERNSTINE, R. L, y CALLAGAN, D. A.: "Ultrasonic doppler inspection of the fetal heart". Amer. J. Obstet. Gynec. 95: 1001, 1966.

BABUNA, C. y YENEN, E.: "Enzimatic determination of placental function". Amer. J. Obstet, Gynec. 95: 925, 1966.

BERMAN, A. M., KALCHMAN, C. G., CHATORAJ, S. C. y SCOMMEGNA, A.: "Relationship of amniotic fluid estriol to maternal urinary estriol". Amer. J. Gbstet, Gynec. 100: 15, 1968.

BRANDT, A. J., y BATES, J. S.: "Transabdominal amniocentesis in hydramnios". Obstet. y Ginec. 17: 392, 1961.

BRENNER, W.; col.: "Intrauterina prostaglandin F2-Alfa for inducing abortion". Obstet. y Gynec. 39: 628, 1972.

BREVER, L, JOHNSON, L.: "Effects of intraamniotic injection of saline of uterine activity". Amer. J. Obstet. y Gynec. 101 : 197, 1968.

CANTAROW, A., STUCKERT, H. and DAVIS, R. C.: Chemical composition of amniotic fluid. Surg. Gynec. Obstet. 57: 63, 1933.

COBO, E., MUÑOZ, S., col.: "El embarazo de alto riesgo". Rev. Col. Obstet. y Gynec. 21: 561, 1970.

CALDEYRO-BARCIA, R.: "Uterine contractility in obstetrics". II Wld. Congr. nter. Led. Obstet. y Gynec. 1 : 65, 1958.

COBO, E.: "Uterine hipercontractility in toxemia of pregnancy. I. its prolonged therapeutic control". Amer. J. Obstet. y Gynec. 90: 505, 1964.

COBO, E„ QUINTERO, C. A., ESTRADA, G., y ZAMBRANO, M. D.: "Uterine behavior in abruptio placentae. I. Contraction patterns and their reactivity to ocytocin". Amer. J. Obstet. Gynec. 93: 1.151, 1965.

COBO, E.: "La actividad contráctil del útero humano grávido en la toxemia del embarazo". Rev. Col. Obstet. y Gynec. 14: 203, 1963.

COHEN, B. M.: "The relationship between the fetal condition and biochemical fluid at induction of labor". J. Obstet. y Gynec. Brit. Cwlth. 71: 496, 1970.

COOPER, G., Jr., y COOPER, J. B.: "Peligros de la radiación para la madre y el feto". Clin. Obstet. y Gynec. 9: 11, 1966.

CERVENKA, J., GORLIN, R., BENDEL, R. : "Prenatal sex determination". Obst. y Gynec. 37: 912, 1971.

CRYSTLE, D., RIGSBY, N. C.: "Amniocentesis experience and complications". Amer. J. Obstet. y Gynec. 106: 310, 1970.

CHARLES, D., JACOBY, H. E., BURGES, F. : "Amniotic fluid volumes in the second half of pregnancy". Amer. J. Obstet. y Gynec. 93: 11042, 1965.

CHERRY, S. H., DOLGER, H„ ROSENGIELD, R., y KOCHWA, S.: "Amniotic fluir urea nitrogen, uric acid and creatinine in diabetic pregnancy". Bull. N. Y. Acad. Med. 45: 46, 1969.

DICKMAN, W. J., DAVIS, M. E.: "Volumetric determination of amniotic fluid with congo red". Amer. J. Obstet. y Gynec. 25: 623, 1933.

DICZFALUSY, E.: "Chorionic gonadotrophin and oestrogens in the human placenta". Acta Endec. (Kbb), 12: Suppl. 12. 1953.

DICZFALUSY, E.: "Endocrinology of the fetus". Acta Obstet. Gynec. Svand. 41 : (Suppl. I) 45, 1962.

DERRINGTON, M., y SOOTHILL, F. J.: "An inmunochemical study of the proteins of amniotic fluid and maternal and fetal serum". J. Obstet. Gynec. Brit. Comm. 68: 755, 1961.

DUHRING, J. L, y GREENE, J. W. Jr.: "Evaluation of intrauterine fetal status". Clin. Obstet. Gynec. 9: 935, 1966.

DIAZ, J.: "La prueba del índigo-carmin en la ruptura prematura de membranas". Rev. Col. Obst. y Gynec. 20: 373, 1969.

DANDFORTH, D. N., y GORHAM, F.: "Plasma histaminase". Amer. J. Physiol. 119: 294, 1937.

FUCHS, F.: "Volumen del líquido amniótico en diversas etapas de la gestación". Clin. Obst. y Gynec. 9: 461, 1966.

FUCHS, F., y RMS, P.: "Antenal sex determination". Nature, 177: 330, 1956.

FUCHS, F.: "Genetic information from amniotic fluid constituents". Clin. Obst. y Gynec. 9: 565, 1966.

FUCHS, F., y PHILIP, J.: "Possibility of antenal examination of fetal chromosomes". Nor. Med. 69: 572, 1963.

FUCHS, F. : "Volume of amniotic fluid at various stages of pregnancy". Clin. Obst. y Gynec. 9: 449, 1966.

FLOYD, W., GOODMAN, P„ y WILSON, A.: "Amniotic fluid filtration and citology". Obstet. y Gynec. 34: 583, 1969.

FREDA, V. J.: "RH problem in obstetrics and a new concept of its management using amniocentesis and spectrophotometric scanning of amniotic fluid”. Amer. J. Obs-tet. y Gynec. 92: 341, 1965.

FRITZ, F., CEDERWIST, L.: "Adelantos recientes en el diagnóstico prenatal por análisis del líquido amniótico". Clin. Obst. y Gynec. Marzo 1970. P. 178.

COLD, E. M.: "Identificación del feto que corre riesgo alto". Clin. Obstet. y Gynec. 11:1069, 1968.

GOODWIN, J. W., DUNNE, J. T., THOMAS, B. W.: "Ante-partum identification of the fetus at risk". Can. Med. Assoc. J. 101 : 458, 1969.

GREENE, J. W., y TWEDALE, S.: "Endocrine indices of fetal enviroment". Clin. Obstet. y Gynec. 11: 1081, 1968.

GREENE, J. W., Jr., TWENDALE, D. E.: "Indices endocrinos del medio fetal". Clin. Obstet. y Ginec. 11: 1106, 1968.

GREENE, J. W., Jr., DUHRING, J. L., y SMITH, K.: "Placental function test. R review of methods available for assessment of the fetoplacental complex". Amer. J. Obstet. y Gynec. 92: 1032, 1965.

GREENE, J. W. Jr., SMITH, K., KYLE, G. C., TOUSCHSTONE, J. C, y DUHRING, J. L. : "Use of urinary estriol excretion in the management of pregnancies complicated by diabetes mellitus". Amer. J. Obstet. y Gynec. 91: 684, 1965.

GREENE, J. W., Jr., TOUCHSTONE, J. C.: "Urinary estriol as a index of placental function". Amer. J. Obstet. y Gynec. 85 :1, 1963.

GLUCK, L., KULOVICH, M. V., BORER, R. C, BRENNER, P. H., ANDERSON, G., SPE-LLACY, W. N.: "Diagnosis of the respiratory distress syndrome by amniocentesis". Amer. J. Obstet. y Gynec. 109: 440, 1971.

GLUCK, L., KULOVICH, M.: "Measuring the functional maturation of the fetus with the lecithin sphingomyelin ratio". Year Book Obstet. y Gynec. Pag. 256. Year Book Medical Publishers Chicago, 1972.

HANON, F., COQUOIN-CARNOT, M., y PIG-NARD, P.: "Le liquide amniotique". Masson, Paris, 1955, p. 125.

HENDRICTS, C. H.: "Registro de la presión del líquido amniótico". Clin. Obstet. y Gynec. 9: 535, I960.

HELMY, F. M., y HACK, Mñ H.: "Comparison of the lipids in maternal and cord blood and of human amniotic fluid". Proc. Soc. Exp. Bid. Med. 110: 91, 1962.

HUISJES, H. J.: "Cytologic features of liquor amnii". Acta Cytol. 12: 42, 1968.

HAWORTH, S. G., MILIC, A. B., ADAMSON, K.: "Indices bioquímicos del estado fetal". Clin. Obstet. y Gynec. 11: 1200, 1968.

HENRY, G. R.: "Amnioscopy". British Journal of Hospital Medicine, Pag. 36, 1971.

H. BISHOP, E.: "Vigilancia del estado fetal con métodos ultrasónicos". Clin. Obstet. y Gynec. 11: 1159, 1968.

JOSIMOVICH, J. B., ATWOOD, B. L.: "Human placental lactogen, a trophoblastic hormone sinengizing with chorionic gonadotrophin". Amer. J. Obstet. y Gynec. 88: 867, 1964.

JACOBSEN, C., BARTER, R.: "Intrauterine diagnosis and management of genetic defects". Amer. J. Obstet. y Gynec. 99: 6, 1967.

KOHL, E. G.: "Comunity Obstetrical Study Progress Report. 1960. Brooklyn, New York.

LILEY, A. W.: "Liquor amnii analysis in the management of the pregnancy complicated by rhetsus sensibilization". Amer. J. Obstet. y Gynec. 82: 1359, 1961.

LILEY, A. W.: "Intrauterine transfusion of fetus in haemolitic disease". Brit. Med. J. 2: 1107, 1963.

LITTLEFIELD, J.: "Problems in the use of cultured amniotic fluid cells for biochemical diagnosis. Intrauterine diagnosis". 7: 5, 1971.

LAMBRINOPOULUS, T. C.: "Prolonged pregnancy associated with increased serum oxy-tocinase". Obstet. y Gynec. 23: 780, 1964.

LARON, Z., MANNEN HE1MER, S., y GUTHAM, S.: "Lack of transplacental passage of grouth hormone in rabits". Experientia, 22: 831, 1966.

LEE, A. B. H., y LEWIS, P. L.: "Alkaline phosphatas activity in normal and toxemic pregnancies". Amer. J. Obstet. y Gynec. 87: 1071, 1963.

LEVINE, B„ ELY, C. W., y WOOD, W. A.: "Assessment of fetal maturity by maternal serum alkaline phosphatase analysis". Amer. J. Obstet. y Gynec. 96: 1155, 1966.

LIND, T., PARKIM, F. M., y CHEYNE, G. A. : "Biochemical and cytologycal changes in liquor amnii with advancing gestation”. J. Obstet. y Gynec. Brit. Cwlth. 76: 676, 1969.

LIND, T., W. Z., BILLEWICZ y G. A., CHEY-NE: "Composition of amniotic fluid and maternal blood through pregnancy”. J. Obstet. y Gynec. Brit. Comm. 78: 505-512,, 1971.

LIND, T., F. M., PAKIN and G. A. CHEYNE: "Biochemical and cytologic changes in amniotic fluid with advancing gestation". J. Obstet. y Gynec. Crit. Comm. 76: 673-683, 1969.

MARMOL, J. G., VOLLAMN, R. F., GORDON, M. et al: "Maternal death and high risk pregnancy: An analysis of 40 maternal deaths in the collaborative project". Obstet. Gynec. 30: 816, 1967.

MAKREPEACE, A. W., FREEMONT-SMITH, F., DAYLEY, M. E. and CARROL, M. P.: "Nature of amniotic fluid". Surg. Obstet. y Gynec. 53: 635, 1931.

MAKOWSKI, E. L., PREM, K. A., y KAISER, I. H.: "Detection of sex of fetuses by the incidence of sex chromatin body in nuclei cells in amniotic fluid". Science, 123: 544, 1956.

MARCOU, F., ATHANASIU-VERGU, E., CHIRICEANU, D., COJMA, G., GINDOLD, N., y PARHON, C. H.: "Metabolisms of histaminase". Presse Med. Egypte, 46: 371, 1938.

MILLER, S. B., NAOR, E., MILKUVICH, L., y SCHMIDT, W. W.: "Serum levels of cystine - amino - peptidase, Leucine - amino peptidase, and alkaline phosphatase in single and twin pregnancies'5'. Obstet. y Gynec. 24: 707, 1964.

MANDELBAUM, B., LA CROIX, G. C., y ROBINSON, A. R.: "Determination of fetal maturity by spectrophotometric analysis of amniotic fluid". Obstet. y Gynec. 29: 471, 1967.

MESSER, R. H.: "Heat stable alkaline phosphatase as an index of placental function". Amer. J. Obstet. y Gynec. 98: 459, 1967.

MIDGLEY, A. R., Jr.: "Inmunoassay of human gonadotropins current status". Clin. Obstet. y Gynec. 10: 119, 1967.

MERKATZ, I., SOLOMON, S.: "Unidad fetoplacentaria". Clin. Obstet. y Gynec. 13: 665, 1970.

MILUNSKY, A., col.: "Amniocentesis para estudios genéticos prenatales". Obstet. y Gynec. 4: 1, 1973.

MACINTYRE, N.: "Cromosomal problems of Intrauterine diagnosis". Intrauterine Diagnosis. 7: 5, 1971.

MEISELS, A.: "Citodiagnóstico hormonal durante el embarazo". Pren. Med. Mex. 30: 85, 1965.

MONTALVO, RUIZ L.: "Vaginal citology during delivery". Acta Cytol. 9: 337, 1965.

NESBITT, R. Jr., AUBRY, R. H.: "High risk obstetrics II : Value of semiobjetive grading system in identifying the vulnerable group". Amer. J. Obstet. y Gynec. 30: 816, 1967.

NESBITT, Jr., R. E. L, GARCIA, R., y BONE, D. S.: "Pronostic value of vaginal cytology in pregnancy". Obstet. y Gynec. 17: 2, 1961.

NELSON, JAMES, H., Jr.: "Nuevas fronteras en la radiología obstétrica". Clin. Obstet. y Gynec. 9: 114, 1966.

NELSON, G. H.: "Amniotic fluid phospholipid patherns in normal an abnormal pregnancies". Amer. J. Obstet, y Ginec. 105: 1072, 1969.

NERI, A., y ECKERLING, B.: "Noninfectius peritonitis: A complication of abdominal amniocentesis in acute hydramnios: Report of a case". Obstet. y Gynec. 27: 478, 1966.

NADLER, H. L.: "Prenatal detection of genetic defects". J. Pediatrics, 74: 132, 1969.

NADLER, H. L.: "Antenatal detection of hereditary disorders". J. Pediatrics, 42 : 912, 1968.

NALLER, H.: "Intrauterine detection of genetic disorders the fetus and the newborn". Year Book, Obstet. y Gynec. 183.

NADLER, H.: "Indications for amniocentesis in the early prenatal detection of genetic disorders". Intrauterine Diagnosis. 7: 5,1971.

OKAYAMA, T., y KOBAYASHI, Y.: "Determination of diamine oxidase activity by liquid scintillation counting". Arch. Biochem. 95: 242, 1961.

OJALA, A.: "Studies of bilirubin in amniotic fluid with special reference". Acta Obstet. y Gynec. Scandinav. 50: 10, 1971.

D PITKIN, R. M. y ZWIREK, S. J.: "Amniotic fluid creatinine". Amer. J., Obstet. y Gynec. 98: 1135, 1967.

PLENTL. A.: "Formation and circulation of amniotic fluid". Clin. Obstet. y Gynec. 9: 427, I960.

PEARSON, P. L, BORROW, M. y VOSA C. G.: "Tecnique for identifying y chromosomes in human interphase nuclei". Nature, 226: 78, 1970.

PAPP, Z., GARDO, S., HERPAY, G.: "Prenatal sex determination by amniocentesis". Obstet. y Gynec. 36: 429-432, 1970.

PAPANICOLAOU, G. N.: "Diagnosis of early pregnancy by the vaginal smear method". Proc. Soc. Exp. Biol. (N.Y.) 22: 436, 1925.

PUNDEL, J. P., y VAN MEENSEL, F.: 'Gestation et citologie vaginale". Masson y Cie. Paris. 1951.

PENDLETON, H. J.: "Fetal heart monitoring". British Journal of Hospital Medicine, Pág. 39, 1971.

QLEENAN, J. T.: "Multiple intrauterine transfusion for erythroblastosis fetalis". J. Amer. Med. Ass. 191: 943, 1965.

QUEENAN, J. T., y WYATT, R. H.: "Inauterine transfusion of fetus for severe erythroblaetosis fetalis". Amer. J. Obstet. y Gynec. 92: 375, 1965.

QUEENAN, J. T., y DOUGLAS, R. G.: "Intrauterine transfusion: A preliminary report". Obstet. y Gynec. 25: 308, 1965.

QUEENAN, J. T.: "Amniocentesis and transamniotic fetal transfusion for Rh disease". Clin. Obstet. y Gynec. 9: 491-507, 1966.

RANTAKIALLO, P.: "Groups at risk in low birth weight infants and prenatal mortality". Acta Pediátrica Scandinávica. 193: 5, 1969.

RIES, P., y FUCHS, F.: "Antenatal determination of fetal sex in prevention of hereditary diseases". Lancet, 2: 180, 1960.

RATANOSOPA, V., SCHINDLER, A. E., LEE F. Y., y HERMANN: "Measurement of es-:riol in plasma by gas liquid cromatogra-Dhy". Amer. J. Obstet. y Gynec. 99: 295, 1957.

RYAN, G. T., FACO, G., ROY I. Jr. y JACK W. PEARSON: "Fetal bleeding as a major hazard of amniocentesis". Obst. y Gynec. 40: 702-706, 1972.

RUSSELL, J. G.: "Obstetrics radiology". British Journal of Hospital Medicine, Pág. 23, 1971.

SHEREWSBURY, J. F. D.: "Chemistry of the liquor amnii". Lancet 1 : 415, 1933.

SERR, D. M., SACHS, L. y DANON, M.: "Diagnosis of sex before birth using cells from the amniotic fluid". Bull. Res. Counc. Israel, E. 5: B 137, 1955.

SHETTLES, L. B.: "Nuclear morphology of cells in human amniotic fluid in relation to sex of infant". Amer. J. Obstet. y Gy-nec. 71 : 834, 1956.

STEELE, N. W., y BREG, W. R.: "Chromosome analysis of human amniotic fluid cells". Lancet, 1 : 383, 1966.

SHEFF, W. F. y ESTPHAL, M.: "Fractionation of amniotic fluid proteins by zone electrophoresis". Obstet. y Gynec. 26: 826: 1965.

SANCHEZ, F., y ONATRU, W. : "Contenido de glucosa en el líquido amniótico de embarazos normales". Rev. Col. de Obstet. y Gynec. 24: 135, 1973.

SANCHEZ, T. F.: "La amniocentesis, indicaciones técnicas y complicaciones". Rev. Fac. Med. Univ. Nal. de Col. 38: 371-377, 1972.

SANCHEZ, T. F.: "Amniocentesis transabdominal y embarazo prolongado". Rev. Col. Obstet. y Ginec. 13: 5, 1972.

SUNDEN, BERTIL: "Empleo de los ultrasonidos para el diagnóstico en Obstetricia". Rev. andorama, Pág. 10, 1969.

SCARPELLI, F. M.: "Thelong tracheal fluid, and lipid metabolism of the fetus". Pediatrics. 40: 951, 1967.

SHARP, F.: "Estimation of fetal maturity by amniotic fluid exfoliative cytology". J. Obstet. y Gynec. Brit. Cwlth. 75: 812, 1968.

SOUTHERN, Al. KABAYASHI y WEINGOLD, A. B., y CARMADONY, N. C.: "Serial plasma diamino-oxidase, in first and second trimester complications of pregnancy". Amer. Obstet. y Gynec. 96: 4, 1966.

SOUTHERN, Al., WEINGOLD, A. B„ KOBAYASHI, Y., GRIMALDI, R., GOLD, E. M.: "Diamino oxidase in diabetic pregnancy". Amer. J. Obstet. y Gynec. 101 : 899, 1968.,

SUCKERMAN, H., SADOVSKY, B., y KALLNER, B.: "Serum alkaline phosphatase in pregnancy and puerperium". Obstet. y Gy-nec. 25: 819, 1965.

SMITH, K., GREENE, J., W. Jr., y TOUCHSTONE, J. C.: "Urinary estriol determination in the management of prolonged pregnancy". Amer. J. Obstet. y Gynec. 96: 901,1966.

SCIARRA, J. J.: "Placental protein with lactogenic and growth. Hormone like properties". Clin. Obstet. y Gynec. 10: 132, 1967.

SPELLACY, W. N., COHEN, W. D., y CARLSON, B. L.: "Human placental lactogen levels as a measure of placental function". Amer. J. Obstet. y Gynec. 97: 560, 1967.

SUAREZ, G., BUSTILLO J. y MEDINA J.: "Estudio citológico del líquido amniótico utilizando la coloración de sulfato de azul de Ni lo para determinar a madurez fetal". Rev. Col. Obst. y Ginec. XXI : 67, 1970.

TANKARD, A. R„ BAGNALL, D. J. T., y MORRIS, F.: "Composition of the amniotic fluid analyst". 59: 806, 1934.

THIEDE, H. A., CREASMAN, W. I., METCALFE, S.: "Antenatal analysis of the human chromosomes". Amer. J. Obstet. y Gynec. 94: 589, 1966.

TITUS, M. A., REYNOLDS, B. R., GLEN-DENNING, M. D., and PAGE, E. W.: "Plasma aminopeptidase activity oxytocinase in pregnancy and labor". Amer. J. Obstet y Gynec. 80: 1124, 1960.

TRICOMI, V. G., KHL, S.: "Estado actual de la pelvimetría radiográfica". Clin. Obstet. y Gynec. 9: 44, 1966.

TAULOR, E. S., THOMPSON, H., GOTTESJELD, K., HOLMES, J. H., et al: "Ultrasound in obstetric and Gynecology". Amer. J., Obstet. y Gynec. 99: 671, 1967.

TAYLOR, E. S., THOMPSON, H., GOTTESJELD, K., HOLMES, J. H., et a!: "Ultrasound diagnostic techniques in obstetricians gynecology". Amer. J. Obstet. y Gynec. 90: 655, 1964.

UFELDER, H.: "Current status of the stilbestrel - adenosis - carcinoma syndrome". Presentado en el VII Congreso Mundial de Obstet. y Ginec. Moscú, Agosto 1973.

U. S. Children's Bureau present demographic trends and their effects on maternal and child health needs and services. Washington D. C, 1968.

VAN LEEUWEN L, JACOBY, HANNACH, CHARLES, D.: "Exfoliative citology of amniotic fluid". Acta Citol. 9: 442, 1965.

VALENTI, C, KAPLAN, M. : "Diagnóstico prenatal de enfermedades hereditarias". Obstet. y Gynec. 39: 627, 1972.

WALLACE, H. H.: "Mortalidad y morbilidad perinatales". Clin. Obst. y Ginec. Marzo 1970. Pag. 38.

WALTER, A. H. C, JENNISON, R. F.: "Antenatal prediction of hemolitic disease of newborn". Brit. Med. J., 2: 1152, 1962.

WILD, A. E.: "The association between protein and bilirrubin in liquor". Clin. Sci. 21 : 221, 1961.

WOYTON, J.: "Die beurteilung des reifegrades den frucht anf grunndder". 2bl. Gynak. 85: 552, 1963.

WOOD, C., ACHARYA, P. T., CORNWELL, E., y PINKERTON, J. H. M.: "The significance of glucose and lactic acid concentration in the amniotic fluid". J. Obstet. y Gynec. Brit. Cwlth. 70: 274, 1963.

WEINGOLD, A. B.: "Indices enzimáticos del medio fetal". Clin. Obstet. y Gynec. 11 : 1081, 1968.

WIED, G. L.: "Cytology during pregnancy". Year Book of Obstet. y Gynec. Pag. 16. Year Book Medical Publishers, Chicago 1965-1966. series.

WIGVIST, N., BYGDEMAN, M., col.: "Current developments in the use of protaglandines for induction of abortion". Research in Prostaglandines, 2: 3, 1972.

WALLACE, P. G., IGNEAUD, H., col.: "Amniotic fluid creatinine for prediction of fetal maturity". Obstet. y Gynec. 34 : I, 1969.

WHITE, CH. col.: "Role and chemical and cytologic analysis of amniotic fluid in determination of fetal maturity". Amer. J. Obstet. y Gynec. 99: 6, 1967.

"Symposium on hormonal citology”. Acta Citol. 12: 87, 1968.