Mohammad Javad Khezeli, Abasat Mirzaei and Leila Mohammad Nahal 2021. A STUDY OF SERVICE QUALITY GAP FROM THE PERSPECTIVE OF CORONAVIRUS PATIENTS ADMITTED TO FARHIKHTEGAN HOSPITAL IN TEHRAN, 2020. International journal of Nursing Didactics. 11, 03 (Mar. 2021), 01–04. DOI:https://doi.org/10.15520/ijnd.v11i03.3264.