Kitova, T., L. Popova, and S. Kostadinov. “Partial Hydatidiform Mole Complicated by Multinodular Goiter. A Case from Bulgaria”. International Journal of Sciences: Basic and Applied Research (IJSBAR), vol. 25, no. 2, Jan. 2016, pp. 70-75, https://gssrr.org/index.php/JournalOfBasicAndApplied/article/view/5157.