TY - JOUR T1 - COX-2 inhibitors and type 4 error JF - Canadian Medical Association Journal JO - CMAJ SP - 190 LP - 190 VL - 169 IS - 3 AU - Michal R. Pijak AU - Frantisek Gazdik Y1 - 2003/08/05 UR - http://www.cmaj.ca/content/169/3/190.abstract ER -