PT - JOURNAL ARTICLE AU - J. E. Schinbein TI - Boxing DP - 1987 Oct 01 TA - Canadian Medical Association Journal PG - 591a--592 VI - 137 IP - 7 4099 - http://www.cmaj.ca/content/137/7/591a.short 4100 - http://www.cmaj.ca/content/137/7/591a.full SO - CMAJ1987 Oct 01; 137