DOI: https://doi.org/10.18597/rcog.1252
DOI: https://doi.org/10.18597/rcog.1255
DOI: https://doi.org/10.18597/rcog.1256
DOI: https://doi.org/10.18597/rcog.1258
DOI: https://doi.org/10.18597/rcog.1260
DOI: https://doi.org/10.18597/rcog.1265
DOI: https://doi.org/10.18597/rcog.1266