Asymmetric Dimethylarginine is Associated with Parameters of Glucose Metabolism in Caucasian but not in African Women from South Africa - Reimann, M; Schutte, A E; Malan, N T; Schwarz, P E H; Benndorf, R A; Schulze, F; Böger, R H (Experimental and Clinical Endocrinology & Diabetes, 2007)