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    Chest. 2007 Mar;131(3):909-12. Epub 2007 Feb 15.

    Registering a clinical trial in ClinicalTrials.gov.

    Source

    National Library of Medicine, 8600 Rockville Pike, Rockville, MD 20894, USA. dzarin@mail.nih.gov

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    PMID:
    17303677
    [PubMed - indexed for MEDLINE]

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