| Literature DB >> 10390480 |
M E van den Akker-van Marle, M van Ballegooijen, R Boer, G J van Oortmarssen, J D Habbema.
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Year: 1999 PMID: 10390480 PMCID: PMC1116163 DOI: 10.1136/bmj.319.7201.58
Source DB: PubMed Journal: BMJ ISSN: 0959-8138