Kazan medical journalKazan medical journal0368-48142587-9359Eco-Vector7683910.17816/kazmj76839Research ArticleThe dependence of fetal development on the duration of the mother's menstrual periodChernoyarovaV. D.info@eco-vector.comKazan State Institute for Advanced Medical Training150519272355345422707202127072021Copyright © 1927, Chernoyarova V.D.1927<p>The rather old (1882) observation of Guzzi, who observed that the weight and length of newborns are directly proportional to the number of days of the mother's menstrual period, has lately again attracted the attention of researchers. Thus Revelli on 2500 cases, and Szenes and Mondr on 739 cases could generally confirm Guzzi's data, while La Tarke, on the contrary, came to negative data. Our work was already finished when Dr. Agabekov reported, who, on the basis of 462 cases, also adheres to the opinion of Guzzi.</p>Kazan Medical archiveКазанский медицинский архив