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Panel (A): changes in mean (±s.e.) HbA1c during the 12-week treatment with vildagliptin 50 mg bid (open triangles) or voglibose 0.2 mg tid (closed circles). Panel (B): least square mean (±s.e.) change in HbA1c at endpoint under treatment with vildagliptin 50 mg bid (white bar) or voglibose 0.2 mg tid (black bar). *p < 0.001 vs voglibose. HbA1c, haemoglobin A1c.
