Abstract
the frequency of multiple pregnancies has increased significantly recently.

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Copyright (c) 2022 Гафурова Н.О., Ильясов А.Б
the frequency of multiple pregnancies has increased significantly recently.
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Copyright (c) 2022 Гафурова Н.О., Ильясов А.Б