1. Rising prevalence of asthma is sex-specific in a US farming population
Caroline A. Motika, MD, Charalampos Papachristou, PhD, Mark Abney, PhD, Lucille A. Lester, MD, Carole Ober, PhD 
Journal of Allergy and Clinical Immunology 
Volume 128, Issue 4, Pages (October 2011)
DOI: /j.jaci
Copyright © 2011 American Academy of Allergy, Asthma & Immunology Terms and Conditions

2. Fig 1
Absolute age-specific risks for asthma by atopic status in 2006 to 2009.
Journal of Allergy and Clinical Immunology  , DOI: ( /j.jaci )
Copyright © 2011 American Academy of Allergy, Asthma & Immunology Terms and Conditions