PT  - JOURNAL ARTICLE
AU  - D. L. Hahn
TI  - A theory explaining time trends in asthma prevalence
AID  - 10.1183/09031936.06.00119105
DP  - 2006 Feb 01
TA  - European Respiratory Journal
PG  - 434--435
VI  - 27
IP  - 2
4099  - http://erj.ersjournals.com/content/27/2/434.2.short
4100  - http://erj.ersjournals.com/content/27/2/434.2.full
SO  - Eur Respir J2006 Feb 01; 27