Comparison of glucose fluctuation between metformin combined with acarbose or sitagliptin in Chinese patients with type 2 diabetes: A multicenter, randomized, active-controlled, open-label, parallel design clinical trial.

This was consistent with previous study, which showed a highly significant positive correlation between increment in BG from the pre-breakfast value after an overnight fast to the 90-min post-breakfast value and SD around the 24-h mean glucose value.

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