The prospective, observational, multicenter, major trauma transfusion (PROMMTT) study: comparative effectiveness of a time-varying treatment with competing risks.
JAMA Surg. 2013 Feb;148(2):127-36. doi: 10.1001/2013.jamasurg.387.
JAMA Surg. 2013.
PMID: 23560283
Free PMC article.