PT - JOURNAL ARTICLE ED - , TI - How to read clinical journals: I. why to read them and how to start reading them critically DP - 1981 Mar 01 TA - Canadian Medical Association Journal PG - 555--558 VI - 124 IP - 5 4099 - http://www.cmaj.ca/content/124/5/555.short 4100 - http://www.cmaj.ca/content/124/5/555.full SO - CMAJ1981 Mar 01; 124