PT  - JOURNAL ARTICLE
AU  - N C Barnes
AU  - C D Sheldon
TI  - AUTHORS' REPLY
AID  - 10.1136/thx.48.5.583-a
DP  - 1993 May 01
TA  - Thorax
PG  - 583--583
VI  - 48
IP  - 5
4099  - http://thorax.bmj.com/content/48/5/583.2.short
4100  - http://thorax.bmj.com/content/48/5/583.2.full
SO  - Thorax1993 May 01; 48