PT  - JOURNAL ARTICLE
AU  - Ellsworth, Allan
TI  - Phase IV Drug Studies
AID  - 10.3122/jabfm.5.1.115
DP  - 1992 Jan 01
TA  - The Journal of the American Board of Family
                Practice
PG  - 115--115
VI  - 5
IP  - 1
4099  - http://www.jabfm.org/content/5/1/115.short
4100  - http://www.jabfm.org/content/5/1/115.full
SO  - J Am Board Fam Med1992 Jan 01; 5