Kwizera, C., Molnar, C., Butiurca, V., Decebal, F., Milutin, D., Ţicalo, A., & Copotoiu, C. (1969). Upper Gastrointestinal Tract Hemorrhage: Unexpected Discovery. Chirurgia (Bucharest, Romania : 1990), 114(3), 409-413. https://doi.org/10.21614/chirurgia.114.3.409 (Original work published 1969)