Joshi, K S, C D Chawla, S Karki, and N C Shrestha. “Sonographic Measurement of Fetal Pinna Length in Normal Pregnancies”. Kathmandu University Medical Journal 9, no. 2 (June 10, 2012): 49–53. Accessed May 5, 2024. https://www.nepjol.info/index.php/KUMJ/article/view/6288.