PT - JOURNAL ARTICLE ED - , TI - Letter: Geology and disase in Newfoundland DP - 1973 Oct 20 TA - Canadian Medical Association Journal PG - 677a--678 VI - 109 IP - 8 4099 - http://www.cmaj.ca/content/109/8/677a.short 4100 - http://www.cmaj.ca/content/109/8/677a.full SO - CMAJ1973 Oct 20; 109