Chauhan, A., Verma, A., Sharma, D., Gupta, L., Kumar, D., Sharma, G. and Grover, A. (2020) “Difference in prevalence of diabetes and diabetic retinopathy among low-altitude dwellers vs. high-altitude dwellers in North India”, Asian Journal of Ophthalmology, 17(1), pp. 19-29. Available at: https://asianjo.com/index.php/AsianJO/article/view/441 (Accessed: 27September2020).