Ali Zohair Nomani , Muhammad Saleem Qureshi , Musarrat Iqbal , Hanna Nomani ,Saba Binte Kashmir , Marina Wazir , Kamran Rasheed, “Frequency and Types of Gastrointestinal Tract Related Interventional Health Care Facilities”, JRMC, vol. 17, no. 1, Jun. 2013.