TY  - SER
TI  - British Medical Journal : Vol. 322 [7290 - 7302] April - June
SN  - 09598138
U1  - 616 
PY  - 2001///
CY  - London
PB  - BMJ
KW  - MEDICAL SCIENCES
KW  - Medicine
UR  - https://www.bmj.com/archive/print/2001
ER  -