BMJ. 1994 May 21;308(6940):1313-4. doi: 10.1136/bmj.308.6940.1313.
BMJ (Clinical research ed.)
M McKee
PMID: 8019213 PMCID: PMC2540243 DOI: 10.1136/bmj.308.6940.1313 Free PMC Article
[No abstract available.]