TY  - SER
TI  - British Medical Journal : Vol. 316 [7137 - 7149] April - June
SN  - 09598138
U1  - 616 
PY  - 1998///
CY  - London
PB  - BMJ
KW  - MEDICAL SCIENCES
KW  - Medicine
N1  - With Index
UR  - https://www.bmj.com/archive/print/1998
ER  -