Serum parathyroid hormone concentrations are increased in women with polycystic ovary syndrome - Panidis, D; Balaris, C; Farmakiotis, D; Rousso, D; Kourtis, A; Balaris, V; Katsikis, I; Zournatzi, V; Diamanti-Kandarakis, E (Clin Chem, 2005)