DOI: https://doi.org/10.18597/rcog.2985
DOI: https://doi.org/10.18597/rcog.2977
DOI: https://doi.org/10.18597/rcog.2979
DOI: https://doi.org/10.18597/rcog.2978
DOI: https://doi.org/10.18597/rcog.2980
DOI: https://doi.org/10.18597/rcog.2981
DOI: https://doi.org/10.18597/rcog.2983