Lancet. 2002 Feb 23;359(9307):713. doi: 10.1016/S0140-6736(02)07798-X.
Lancet (London, England)
Charles Shey Wiysonge, Jimmy Volmink
PMID: 11879902 DOI: 10.1016/S0140-6736(02)07798-X
[No abstract available.]