Key points are not available for this paper at this time.
In Table 1 "Properties of currently available glucose-lowering agents that may guide treatment choice in individual patients with type 2 diabetes mellitus" vildagliptin was incorrectly assigned footnote "a" (Limited use in the U.S./Europe) instead of footnote "b" (Not licensed in the U.S.).The online version reflects these changes.
Inzucchi et al. (Thu,) studied this question.