PT  - JOURNAL ARTICLE
AU  - Bierbrier, G. S.
TI  - Covert influence?
DP  - 1992 Feb 15
TA  - Canadian Medical Association Journal
PG  - 440b--440
VI  - 146
IP  - 4
4099  - http://www.cmaj.ca/content/146/4/440b.short
4100  - http://www.cmaj.ca/content/146/4/440b.full
SO  - CMAJ1992 Feb 15; 146