Display Settings:

Format

Send to:

Choose Destination
    Am J Epidemiol. 1992 Nov 15;136(10):1294.

    Re: "Defining exposure in case-control studies: a new approach".

    PMID:
    1476152
    [PubMed - indexed for MEDLINE]

      Supplemental Content

      Save items

      loading

      Recent activity

      Your browsing activity is empty.

      Activity recording is turned off.

      Turn recording back on

      See more...
      Write to the Help Desk