Syed Muarraf Hussain , Saadat Ali Khan , Seemi Gull,Syeda Maria Ali , Nelofar Irfan , Nauman Bashir. (2012). Effect of High Air-Borne Pollen Count on First Degree Asymptomatic Relatives of Asthmatic Patients. Journal of Rawalpindi Medical College, 16(2). Retrieved from https://journalrmc.com/index.php/JRMC/article/view/555