DOI: https://doi.org/10.18597/rcog.1240
DOI: https://doi.org/10.18597/rcog.1264
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DOI: https://doi.org/10.18597/rcog.1254
DOI: https://doi.org/10.18597/rcog.1257
DOI: https://doi.org/10.18597/rcog.1259
DOI: https://doi.org/10.18597/rcog.1268
DOI: https://doi.org/10.18597/rcog.2969