PT - JOURNAL ARTICLE AU - P Cullinan TI - Childhood allergies, birth order and family size AID - 10.1136/thx.2004.039701 DP - 2006 Jan 01 TA - Thorax PG - 3--5 VI - 61 IP - 1 4099 - http://thorax.bmj.com/content/61/1/3.short 4100 - http://thorax.bmj.com/content/61/1/3.full SO - Thorax2006 Jan 01; 61