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Thabane L, Ma J, Chu R, Cheng J, Ismaila A, Rios LP, Robson R, Thabane M, Giangregorio L, Goldsmith CH.
Thabane L, et al. Among authors: chu r.
BMC Med Res Methodol. 2010 Jan 6;10:1. doi: 10.1186/1471-2288-10-1.
BMC Med Res Methodol. 2010.
PMID: 20053272
Free PMC article.