TY - JOUR T1 - How to read clinical journals: I. why to read them and how to start reading them critically JF - Canadian Medical Association Journal JO - CMAJ SP - 555 LP - 558 VL - 124 IS - 5 A2 - , Y1 - 1981/03/01 UR - http://www.cmaj.ca/content/124/5/555.abstract ER -