DOI: https://doi.org/10.18597/rcog.1804
DOI: https://doi.org/10.18597/rcog.1810
DOI: https://doi.org/10.18597/rcog.1815
DOI: https://doi.org/10.18597/rcog.1818
DOI: https://doi.org/10.18597/rcog.1822
DOI: https://doi.org/10.18597/rcog.1826
DOI: https://doi.org/10.18597/rcog.1833