| Literature DB >> 17991980 |
Hans de Groot1, Paul L P Brand, Wytske F Fokkens, Marjolein Y Berger.
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Year: 2007 PMID: 17991980 PMCID: PMC2072026 DOI: 10.1136/bmj.39365.617905.BE
Source DB: PubMed Journal: BMJ ISSN: 0959-8138