Kazan medical journalKazan medical journal0368-48142587-9359Eco-Vector7655210.17816/kazmj76552Research ArticleVitamin A and antirachitic factor (Goldblatt and Z ilva, Lancet, 1923, sept. 29)ParkhomenkoA.info@eco-vector.com150519242044364362407202124072021Copyright © 2021, Parkhomenko A.2021<p>Until 1920, the growth vitamin A was mixed with the antirachitic vitamin, or, more correctly, with the antirachtic factor, since there is no reason to believe that in the active principle we are dealing with a vitamin.</p>Kazan Medical archiveКазанский медицинский архив