DOI: https://doi.org/10.18597/rcog.1291
DOI: https://doi.org/10.18597/rcog.1294
DOI: https://doi.org/10.18597/rcog.1304
DOI: https://doi.org/10.18597/rcog.1306
DOI: https://doi.org/10.18597/rcog.1307
DOI: https://doi.org/10.18597/rcog.1308