Ahsan, M. Q., A. Das, and T. Banu. “Prenatal Diagnosis of Prepyloric Diaphragm: A Case Report”. Chattagram Maa-O-Shishu Hospital Medical College Journal, vol. 18, no. 2, June 2020, pp. 67-69, doi:10.3329/cmoshmcj.v18i2.47780.