Syed Muarraf Hussain , Saadat Ali Khan , Seemi Gull,Syeda Maria Ali , Nelofar Irfan , Nauman Bashir, “Effect of High Air-Borne Pollen Count on First Degree Asymptomatic Relatives of Asthmatic Patients”, JRMC, vol. 16, no. 2, Dec. 2012.