The Combination of Increased Ovarian Volume and Follicle Number is Associated with More Severe Hyperandrogenism in German Women with Polycystic Ovary Syndrome - Hahn, S; Bering van Halteren, W; Roesler, S; Schmidt, M; Kimmig, R; Tan, S; Mann, K; Janssen, O E (Experimental and Clinical Endocrinology & Diabetes, 2006)