Rathi V ,Dzara K ,Gross CP ,Hrynaszkiewicz I ,Joffe S ,Krumholz HM ,et al. Sharing of clinical trial data among trialists: a cross sectional survey. BMJ 2012;345:e7570
- OPEN ACCESS: All research articles are freely available online, with no word limit. Find out more about the BMJ's open access policy. Submit your paper.
- Find out how study types differ in our How to read a paper section.
- Impact factor latest: The BMJ's impact factor is now 17.215. Submit your paper to the world's fourth most cited general medical journal.
- Browse BMJ Open's collection of research papers on global health