Syeda Rubaba Azim; Nisar, M. .; Baig, M. .; Azfar, S. M. .; Azim, S. N.; Anwar, A. . Experiences of Virtual Teaching During COVID-19 in Medical Institutes of Karachi, Pakistan: Teachers’ Perspective. J Pak Med Assoc 2022, 72, 2223-2228.