RAMAMOORTHY, K.; SUNDARAM, A. S. S. Biochemical screening tests in the urine of mentally retarded children. International Journal of Contemporary Pediatrics, [S. l.], v. 5, n. 4, p. 1249–1254, 2018. DOI: 10.18203/2349-3291.ijcp20182029. Disponível em: https://www.ijpediatrics.com/index.php/ijcp/article/view/1698. Acesso em: 28 feb. 2026.