Kumar, Nitin, Shayam L. Kaushik, Neelam Grover, and Ram L. Sharma. “Retinopathy of Prematurity: Incidence and Risk Factors: A Hospital Based Study from Shimla, Himachal Pradesh, India”. International Journal of Research in Medical Sciences 5, no. 1 (December 19, 2016): 56–61. Accessed October 12, 2025. https://www.msjonline.org/index.php/ijrms/article/view/334.