RT Journal Article SR Electronic T1 A–Z of nutritional supplements: dietary supplements, sports nutrition foods and ergogenic aids for health and performance: Part 42 JF British Journal of Sports Medicine JO Br J Sports Med FD BMJ Publishing Group Ltd and British Association of Sport and Exercise Medicine SP 247 OP 248 DO 10.1136/bjsports-2012-092118 VO 47 IS 4 A1 A B Hodgson A1 R Baskerville A1 L M Burke A1 S J Stear A1 L M Castell YR 2013 UL http://bjsm.bmj.com/content/47/4/247.abstract AB