PRESTON, Alan. The Puerto Rico Journal of Public Health and Tropical Medicine (1925-1949): Coverage of Tropical Sprue. Puerto Rico Health Sciences Journal, [S. l.], v. 42, n. 2, p. 91–101, 2023. Disponível em: https://prhsj.rcm.upr.edu/index.php/prhsj/article/view/3227. Acesso em: 16 nov. 2025.