PT - JOURNAL ARTICLE AU - Duff, S. L. AU - Fish, D. G. TI - Canadian-trained physicians in United States internships and residencies: "Operation Retrieval" and Report of Statistics, 1966-1968 DP - 1970 Feb 14 TA - Canadian Medical Association Journal PG - 291--295 VI - 102 IP - 3 4099 - http://www.cmaj.ca/content/102/3/291.short 4100 - http://www.cmaj.ca/content/102/3/291.full SO - CMAJ1970 Feb 14; 102