Buts, J.-P., Gosseye, S., Claus, D., de Montpellier, C., & Nyakabasa, M. (1981). Solitary hyperplastic polyp of the stomach. AJDC - American Journal of Diseases of Children, 135(9), 846-847. https://hdl.handle.net/2078.5/81962 (Original work published 1981)