Kazan medical journalKazan medical journal0368-48142587-9359Eco-Vector5983810.17816/kazmj59838Research ArticleInfluence of vitamin C provision on hemoglobin and serum iron levels in the blood of childrenChigarinaL. A.info@eco-vector.com2911196748666673101202131012021Copyright © 2021, Chigarina L.A.2021<p>We studied 116 children of two preschool orphanages in Leningrad at the age of 3-7 years, of whom 58 received daily 100 or 300 mg of ascorbic acid until the body was saturated.</p>Kazan Medical archiveКазанский медицинский архив