DOI: https://doi.org/10.18597/rcog.2481
DOI: https://doi.org/10.18597/rcog.2487
DOI: https://doi.org/10.18597/rcog.2489
DOI: https://doi.org/10.18597/rcog.2493
DOI: https://doi.org/10.18597/rcog.2498
DOI: https://doi.org/10.18597/rcog.2502
DOI: https://doi.org/10.18597/rcog.2504
DOI: https://doi.org/10.18597/rcog.2507