Chagas, C., Fidalgo, P., Martins, A., Barata, A., Leitão, C.N., Mira, F.C. and Ramalho, P.S. 1993. Value of congenital hypertrophy of the retinal pigment epithelium as diagnostic marker in familial adenomatous polyposis. Acta Médica Portuguesa. 6, 7 (Jul. 1993), 303–6. DOI:https://doi.org/10.20344/amp.3100.