PT  - JOURNAL ARTICLE
ED  - ,
TI  - Digest
DP  - 1989 Sep 01
TA  - The Journal of the Royal College of General Practitioners
PG  - 392--394
VI  - 39
IP  - 326
4099  - http://bjgp.org/content/39/326/392.4.short
4100  - http://bjgp.org/content/39/326/392.4.full
SO  - J R Coll Gen Pract1989 Sep 01; 39