RT Book, Section A1 Saunders, Katherine H. A1 Igel, Leon I. A2 Papadakis, Maxine A. A2 McPhee, Stephen J. A2 Rabow, Michael W. A2 McQuaid, Kenneth R. SR Print(0) ID 1184163034 T1 Vitamin C (Ascorbic Acid) Deficiency T2 Current Medical Diagnosis & Treatment 2022 YR 2022 FD 2022 PB McGraw-Hill Education PP New York, NY SN 9781264269389 LK accessmedicine.mhmedical.com/content.aspx?aid=1184163034 RD 2024/04/18 AB Most cases of vitamin C deficiency seen in the United States are due to dietary inadequacy in older patients and patients with chronic alcohol use disorder. Patients with chronic illnesses such as cancer and chronic kidney disease and individuals who smoke cigarettes are also at risk.