PT - JOURNAL ARTICLE AU - Robert C. Dickson TI - 9 months DP - 2001 Jul 10 TA - Canadian Medical Association Journal PG - 70--70 VI - 165 IP - 1 4099 - http://www.cmaj.ca/content/165/1/70.short 4100 - http://www.cmaj.ca/content/165/1/70.full SO - CMAJ2001 Jul 10; 165