Persistent elevated serum parathyroid hormone levels with normocalcaemia after parathyroidectomy: Secondary hyperparathyroidism or pseudo- hyperparathyroidism? Olivia Benet-Muñoz; María Asunción Acosta-Mérida; José Antonio Casimiro-Pérez; María Mar Callejón-Cara; Laura Jiménez-Díaz; Joaquín Marchena-Gómez;

Risk factors for surgical failure in patients undergoing surgery for primary hyperparathyroidism Santiago Olguín Joseau; Ariel Arias; Agustín Garzón; Emiliano Peretti; Luis Guzmán; Marcelo Ruggieri;

Preoperative matching studies in the diagnosis of parathyroid adenoma for primary hyperparathyroidism: Can we avoid intraoperative PTH monitoring? Francisco Laxague; Cristian Agustin Angeramo; Enrique Dante Armella; Agustin Cesar Valinoti; Norberto Aristides Mezzadri; Juan Manuel Fernández Vila;