DOI: https://doi.org/10.18597/rcog.1064
DOI: https://doi.org/10.18597/rcog.1067
DOI: https://doi.org/10.18597/rcog.1070
DOI: https://doi.org/10.18597/rcog.1074
DOI: https://doi.org/10.18597/rcog.1076
DOI: https://doi.org/10.18597/rcog.1077