Raveenthiran, V. “Coexistence of ‘Friemann-Dahl sign’ and ‘Neuhauser’s sign’ in a Newborn: A Diagnostic Dilemma”. Journal of Neonatal Surgery 11 (December 5, 2022): 36. Accessed September 12, 2025. https://mail.jneonatalsurg.com/index.php/jns/article/view/1137.