PT - JOURNAL ARTICLE AU - R. Pos TI - Psychological assessment of factors affecting pain DP - 1974 Dec 07 TA - Canadian Medical Association Journal PG - 1213--1215 VI - 111 IP - 11 4099 - http://www.cmaj.ca/content/111/11/1213.short 4100 - http://www.cmaj.ca/content/111/11/1213.full SO - CMAJ1974 Dec 07; 111