PT - JOURNAL ARTICLE AU - Roland, C. G. TI - Secondary sources in history of Canadian medicine DP - 1979 Mar 17 TA - Canadian Medical Association Journal PG - 642--643 VI - 120 IP - 6 4099 - http://www.cmaj.ca/content/120/6/642.short 4100 - http://www.cmaj.ca/content/120/6/642.full SO - CMAJ1979 Mar 17; 120