TY - JOUR T1 - Tentative guidelines for using clinical and economic evaluations revisited JF - Canadian Medical Association Journal JO - CMAJ SP - 927 LP - 929 VL - 148 IS - 6 AU - A. Laupacis AU - D. Feeny AU - A. S. Detsky AU - P. X. Tugwell Y1 - 1993/03/15 UR - http://www.cmaj.ca/content/148/6/927.abstract ER -