Kazan medical journalKazan medical journal0368-48142587-9359Eco-Vector5513610.17816/kazmj55136Research ArticleMeeting of the Kazan branch of the All-Russian Obstetrical and Gynaecological Society of 13 September 1935131119353111-12134913501412202014122020Copyright © 2020, Board E.2020<p>Dr. G. M. Sharafutdinov gave a presentation on "The chemical and hormonal composition and clinical application of gravidan".</p>Kazan Medical archiveКазанский медицинский архив