For citations:

Osipenko M.F., Zhuk E.A., Grishchenko N.G., Kolpakova T.A., Nikonov S.D., Poddubnaya L.V. Iron deficiency anemia in the practice of a gastroenterologist (according to AGA recommendations). Experimental and Clinical Gastroenterology. 2021;(7):56-61. (In Russ.) https://doi.org/10.31146/1682-8658-ecg-191-7-56-61