Markevich, B. O. (2017). Discriminant models the possibility of primary dysmenorrhea appearing in girls 14-18 years depending on the feature s sizes body or sonographic parameters uterus and ovaries and hormonal background in differ entphases of the menstrual cycle. Biomedical and Biosocial Anthropology, (28), 59-63. Retrieved from https://bba-journal.com/index.php/journal/article/view/231