DOI: https://doi.org/10.18597/rcog.1856
DOI: https://doi.org/10.18597/rcog.1858
DOI: https://doi.org/10.18597/rcog.1860
DOI: https://doi.org/10.18597/rcog.1862
DOI: https://doi.org/10.18597/rcog.1863
DOI: https://doi.org/10.18597/rcog.1864
DOI: https://doi.org/10.18597/rcog.1869
DOI: https://doi.org/10.18597/rcog.1871
DOI: https://doi.org/10.18597/rcog.1875