Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 1992 Jul 25;305(6847):235-40.
doi: 10.1136/bmj.305.6847.235.

When to stop a clinical trial

S J Pocock  1
Affiliations

When to stop a clinical trial

S J Pocock. BMJ. .
No abstract available

PubMed Disclaimer

Comment in

  • When to stop a clinical trial.
    Neale EJ. Neale EJ. BMJ. 1992 Aug 22;305(6851):475. doi: 10.1136/bmj.305.6851.475. BMJ. 1992. PMID: 1392974 Free PMC article. No abstract available.
  • When to stop a clinical trial.
    Pollock A. Pollock A. BMJ. 1992 Aug 22;305(6851):475. doi: 10.1136/bmj.305.6851.475-a. BMJ. 1992. PMID: 1392975 Free PMC article. No abstract available.

References

    1. Stat Med. 1990 Jun;9(6):657-71 - PubMed
    1. Br J Cancer. 1976 Dec;34(6):585-612 - PubMed
    1. Pediatrics. 1989 Dec;84(6):957-63 - PubMed
    1. Lancet. 1987 Nov 28;2(8570):1258-9 - PubMed
    1. Eur Heart J. 1985 Jul;6(7):556-85 - PubMed