DOI: https://doi.org/10.18597/rcog.1262
DOI: https://doi.org/10.18597/rcog.1267
DOI: https://doi.org/10.18597/rcog.1271
DOI: https://doi.org/10.18597/rcog.1277
DOI: https://doi.org/10.18597/rcog.1281
DOI: https://doi.org/10.18597/rcog.1284
DOI: https://doi.org/10.18597/rcog.1285
DOI: https://doi.org/10.18597/rcog.1287