title: Letter: Clinical trials with vitamin C.
mesh_terms: D001205:Ascorbic Acid / Q000008:administration & dosage / Q000378:metabolism / Q000627:therapeutic use*; D001206:Ascorbic Acid Deficiency / Q000378:metabolism; D002986:Clinical Trials as Topic; D006801:Humans; D009751:Nutritional Requirements; D012559:Schizophrenia / Q000378:metabolism
chemical_list: D001205:Ascorbic Acid