PT  - JOURNAL ARTICLE
AU  - Padmaja Subbarao
AU  - Piush J. Mandhane
AU  - Malcolm R. Sears
TI  - Asthma: epidemiology, etiology and risk factors
AID  - 10.1503/cmaj.080612
DP  - 2009 Oct 27
TA  - Canadian Medical Association Journal
PG  - E181--E190
VI  - 181
IP  - 9
4099  - http://www.cmaj.ca/content/181/9/E181.short
4100  - http://www.cmaj.ca/content/181/9/E181.full
SO  - CMAJ2009 Oct 27; 181