Hypercalcitoninemia is not pathognomonic of medullary thyroid carcinoma - Toledo, Sergio Pereira de Almeida; Lourenço Junior, Delmar Muniz; Santos, Marcelo Augusto; Tavares, Marcos R.; Toledo, Rodrigo A.; Correia-Deur, Joya Emilie de Menezes (Clinics, 2009)