1. Family Planning and Reproductive Health Clinic, Regional Perinatal Center, Kursk, Russian Federation
2. Department of Biology, Medical Genetics and Ecology, Kursk State Medical University, Kursk, Russian Federation
3. Department of Zoology and Theory of Evolution, Kursk State University, Kursk, Russian Federation
4. Department of Medical Biological Disciplines, Belgorod State University, Belgorod, Russian Federation