DOI: https://doi.org/10.18597/rcog.1178
DOI: https://doi.org/10.18597/rcog.1182
DOI: https://doi.org/10.18597/rcog.1185
DOI: https://doi.org/10.18597/rcog.1187
DOI: https://doi.org/10.18597/rcog.1189
DOI: https://doi.org/10.18597/rcog.1193