M. Afzal, “RISK FACTORS ASSOCIATED WITH CHILDHOOD ASTHMA AMONG CHILDREN AGED 1-12 YEARS IN RAWALPINDI”, Pak Armed Forces Med J, vol. 61, no. 3, Sep. 2011, Accessed: May 19, 2025. [Online]. Available: https://www.pafmj.org/PAFMJ/article/view/745