Figure 1From: World Allergy Organization Study on Aerobiology for Creating First Pollen and Mold Calendar With Clinical Significance in Islamabad, Pakistan; A Project of World Allergy Organization and Pakistan Allergy, Asthma & Clinical Immunology Centre of IslamabadDaily graph of Broussonetia papyrifera from 15th February to 30th April for 2005, 2006, and 2007.Back to article page