Case report: Ectopic production of intact parathyroid hormone (iPTH) by malignoma mimicking primary hyperparathyroidism - Wendt, Ralph; Heller, Marie; Härtwig, Daniel; Ullmann, Sven Oliver; Bisanz, Heike; Geister, Daniela; Mantovani, Luisa; Hoffmann, Ulrike (Frontiers in Oncology, 2024)