DOI: https://doi.org/10.18597/rcog.636
DOI: https://doi.org/10.18597/rcog.638
DOI: https://doi.org/10.18597/rcog.639
DOI: https://doi.org/10.18597/rcog.640
DOI: https://doi.org/10.18597/rcog.641
DOI: https://doi.org/10.18597/rcog.642