Ko CW, Siddique SM, Patel A, Harris A, Sultan S, Altayar O, et al. AGA Clinical Practice Guidelines on the Gastrointestinal Evaluation of Iron Deficiency Anemia. Gastroenterology 2020;159(3):1085-94. https://www.ncbi.nlm.nih.gov/pubmed/32810434
Stoffel NU, Cercamondi CI, Brittenham G, Zeder C, Geurts-Moespot AJ, Swinkels DW, et al. Iron absorption from oral iron supplements given on consecutive versus alternate days and as single morning doses versus twice-daily split dosing in iron-depleted women: two open-label, randomised controlled trials. Lancet Haematol 2017;4(11):e524-e33. https://www.ncbi.nlm.nih.gov/pubmed/29032957
