PT  - JOURNAL ARTICLE
AU  - A Ponce de Leon
AU  - H R Anderson
TI  - Sulphur dioxide levels and asthma.
AID  - 10.1136/thx.49.10.1042
DP  - 1994 Oct 01
TA  - Thorax
PG  - 1042--1042
VI  - 49
IP  - 10
4099  - http://thorax.bmj.com/content/49/10/1042.1.short
4100  - http://thorax.bmj.com/content/49/10/1042.1.full
SO  - Thorax1994 Oct 01; 49