DOI: https://doi.org/10.18597/rcog.1834
DOI: https://doi.org/10.18597/rcog.1838
DOI: https://doi.org/10.18597/rcog.1840
DOI: https://doi.org/10.18597/rcog.1842
DOI: https://doi.org/10.18597/rcog.1853
DOI: https://doi.org/10.18597/rcog.1854
DOI: https://doi.org/10.18597/rcog.1855
DOI: https://doi.org/10.18597/rcog.1857