Rashid, R., Mazumder, M.W., Karim, A.B., Begum, F., Islam, F. and Sonia, Z.F. 2020. von Willebrand Disease, A Rare Cause of Massive Upper GI Bleeding: A Case Report. Bangladesh Journal of Child Health. 43, 3 (Oct. 2020), 188–191. DOI:https://doi.org/10.3329/bjch.v43i3.49581.