Rappa, Julio C, Pablo T Rodríguez Goñi, and Roberto Valiñas. “Value of Ultrasound and Scintigraphy Tc-99 Preoperative. In Hyperparathyroidism Secondary; Comparison With Os Surgical Findings”. Cirugía del Uruguay 75, no. 1 (April 22, 2005): 29–34. Accessed May 24, 2026. https://replica-revista.scu.org.uy/index.php/cir_urug/article/view/4560.