Comparison of Insulin Glargine Versus NPH Insulin in People with Type 2 Diabetes Mellitus Under Outpatient-Clinic Conditions for 18 Months Using a Basal-Bolus Regimen with a Rapid-Acting Insulin Analogue as Mealtime Insulin - Siegmund, T; Weber, S; Blankenfeld, H; Oeffner, A; Schumm-Draeger, P -M (Experimental and Clinical Endocrinology & Diabetes, 2007)