PT  - JOURNAL ARTICLE
AU  - P R Evans
TI  - Nineteen ninety two.
DP  - 1990 Mar 01
TA  - British Journal of General Practice
PG  - 91--92
VI  - 40
IP  - 332
4099  - http://bjgp.org/content/40/332/91.short
4100  - http://bjgp.org/content/40/332/91.full
SO  - Br J Gen Pract1990 Mar 01; 40