Ahsan, S., Haseeb, U., Memon, M. S., Bukhari, S., Mahmood, T. and Fahim, M. F. (2022) “Validity of Hand Held Fundus Camera by Optometrist using Slit lamp 90 d bio microscopy as a reference standard for screening of Diabetes Retinopathy”, Journal of the Pakistan Medical Association, 72(11), pp. 2189–2192. doi: 10.47391/JPMA.4235.