PT  - JOURNAL ARTICLE
AU  - Ben Essex
TI  - PRINCIPLES AND PRACTICE OF PRIMARY CARE AND FAMILY MEDICINE
DP  - 1994 Nov 01
TA  - British Journal of General Practice
PG  - 537--538
VI  - 44
IP  - 388
4099  - http://bjgp.org/content/44/388/537.2.short
4100  - http://bjgp.org/content/44/388/537.2.full
SO  - Br J Gen Pract1994 Nov 01; 44