DOI: https://doi.org/10.18597/rcog.1591
DOI: https://doi.org/10.18597/rcog.1594
DOI: https://doi.org/10.18597/rcog.1599
DOI: https://doi.org/10.18597/rcog.1603
DOI: https://doi.org/10.18597/rcog.1614
DOI: https://doi.org/10.18597/rcog.1615
DOI: https://doi.org/10.18597/rcog.1617
DOI: https://doi.org/10.18597/rcog.1618