DOI: https://doi.org/10.18597/rcog.1635
DOI: https://doi.org/10.18597/rcog.1640
DOI: https://doi.org/10.18597/rcog.1642
DOI: https://doi.org/10.18597/rcog.1644
DOI: https://doi.org/10.18597/rcog.1646