Acharya, R., A. Panthee, R. Basnet, S. Adhikari, and N. Ghimire. “Preterm Birth, Exasperation to the South Asian Countries”. Kathmandu University Medical Journal, vol. 20, no. 1, Mar. 2022, pp. 102-6, doi:10.3126/kumj.v20i1.49965.