Goyal, Pooja, Deepak Kumar, Shivam Dixit, Suyesh Srivastav, and Abhishek Singh. 2016. “Essential Criteria for Quality OPD Services As Perceived by Patients in a Tertiary Care Hospital in Faridabad City”. International Journal of Research in Medical Sciences 4 (2):441-45. https://doi.org/10.18203/2320-6012.ijrms20160292.