The evidence underpinning sports performance products: a systematic assessment
Carl Heneghan, Jeremy Howick, Braden O'Neill, Peter J Gill, Daniel S Lasserson, Deborah Cohen, Ruth Davis, Alison Ward, Adam Smith, Greg Jones, Matthew Thompson
BMJ Open Jan 2012, 2 (4) e001702; DOI: 10.1136/bmjopen-2012-001702