Prevalence and impact of hyperandrogenemia in 1,218 women with polycystic ovary syndrome - Livadas, S; Pappas, C; Karachalios, A; Marinakis, E; Tolia, N; Drakou, M; Kaldrymides, P; Panidis, D; Diamanti-Kandarakis, E (Endocrine, 2014)