“Place of publication” bias?

BMJ 1994; 309 doi: https://doi.org/10.1136/bmj.309.6949.274 (Published 16 July 1994) Cite this as: BMJ 1994;309:274
  1. Y Ben-Shlomo,
  2. G Davey Smith

    The text …

    View Full Text

    Sign in

    Log in through your institution

    Free trial

    Register for a free trial to thebmj.com to receive unlimited access to all content on thebmj.com for 14 days.
    Sign up for a free trial