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The Journal of Allergy and Clinical Immunology > 2014 > 134 > 5 > 1057-1062.e5
The Journal of Allergy and Clinical Immunology > 2013 > 131 > 5 > 1350-1360
Respiratory Medicine > 2011 > 105 > 11 > 1622-1628
Respiratory Medicine > 2011 > 105 > 10 > 1449-1456
Journal of Clinical Epidemiology > 2006 > 59 > 3 > 281-289