Effect of vitamin B supplementation on cancer incidence, death due to cancer, and total mortality: A PRISMA-compliant cumulative meta-analysis of randomized controlled trials

por Zhang, Sui-Liang, Chen, Ting-Song, Ma, Chen-Yun, Meng, Yong-Bin, Zhang, Yu-Fei, Chen, Yi-Wei, Zhou, Yu-Hao
Publicado 2016