Evidence for non-communicable diseases: analysis of Cochrane reviews and randomised trials by World Bank classification
C Heneghan, C Blacklock, R Perera, R Davis, A Banerjee, P Gill, S Liew, L Chamas, J Hernandez, K Mahtani, G Hayward, S Harrison, D Lasserson, S Mickan, C Sellers, D Carnes, K Homer, L Steed, J Ross, N Denny, C Goyder, M Thompson, A Ward
BMJ Open Jul 2013, 3 (7) e003298; DOI: 10.1136/bmjopen-2013-003298