Commentary on Schoenthaler et al: vitamin and mineral supplements--is the methodology sufficient to support the conclusions?
Smith
W B
WB
National Institutes of Health, Bethesda, Maryland 20892-7003, USA. wsmith@willco.niaaa.nih.gov
D002648:Child; D015986:Confounding Factors, Epidemiologic; D019587:Dietary Supplements; D004311:Double-Blind Method; D006801:Humans; D007360:Intelligence; D008903:Minerals / Q000008:administration & dosage*; D016032:Randomized Controlled Trials as Topic; D012107:Research Design / Q000592:standards*; D014754:Violence; D014815:Vitamins / Q000008:administration & dosage*
D008903:Minerals; D014815:Vitamins