Paul C Hébert, George Wells, Morris A Blajchman, John Marshall, Claudio Martin, Giuseppe Pagliarello, Martin Tweeddale, Irwin Schweitzer, Elizabeth Yetisir, Transfusion Requirements in Critical Care Investigators for the Canadian Critical Care Trials Group,
A multicenter, randomized, controlled clinical trial of transfusion requirements in critical care The New England Journal of Medicine. ,vol. 340, pp. 409- 417 ,(1999) ,
10.1056/NEJM199902113400601