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
. 2000 Jul;55(7):585-6.
doi: 10.1136/thorax.55.7.585.

Introduction

Affiliations

Introduction

PD Sly. Thorax. 2000 Jul.
No abstract available

PubMed Disclaimer

Similar articles

Cited by

References

    1. Lancet. 1996 Oct 19;348(9034):1060-4 - PubMed
    1. Lancet. 1999 Aug 14;354(9178):541-5 - PubMed
    1. Thorax. 1998 Nov;53(11):927-32 - PubMed
    1. BMJ. 1991 Sep 21;303(6804):671-5 - PubMed
    1. Am J Respir Crit Care Med. 1998 Jun;157(6 Pt 1):1708-20 - PubMed