PT - JOURNAL ARTICLE AU - Clarke, R. F. TI - Registries of persons who may be overusing prescribed drugs and of patients who may be considered dangerous DP - 1978 Feb 04 TA - Canadian Medical Association Journal PG - 226--227 VI - 118 IP - 3 4099 - http://www.cmaj.ca/content/118/3/226.short 4100 - http://www.cmaj.ca/content/118/3/226.full SO - CMAJ1978 Feb 04; 118