title: Two surprise results from India's biggest trial.
mesh_terms: D000465:Algorithms; D002675:Child, Preschool; D002986:Clinical Trials as Topic; D006801:Humans; D007194:India / Q000453:epidemiology; D012424:Rural Population / Q000706:statistics & numerical data; D014801:Vitamin A / Q000008:administration & dosage*; D014802:Vitamin A Deficiency / Q000188:drug therapy* / Q000401:mortality*; D014815:Vitamins / Q000008:administration & dosage*
chemical_list: D014815:Vitamins; D014801:Vitamin A