Association of prestroke metformin use, stroke severity, and thrombolysis outcome.

Westphal LP, Widmer R, Held U, Steigmiller K, Hametner C, Ringleb P, Curtze S, Martinez-Majander N, Tiainen M, Nolte CH, Scheitz JF, Erdur H, Polymeris AA, Traenka C, Eskandari A, Michel P, Heldner MR, Arnold M, Zini A, Vandelli L, Coutinho JM, Groot AE, Padjen V, Jovanovic DR, Bejot Y, Brenière C, Turc G, Seners P, Pezzini A, Magoni M, Leys D, Gilliot S, Scherrer MJ, Kägi G, Luft AR, Gensicke H, Nederkoorn P, Tatlisumak T, Engelter ST, Wegener S; Thrombolysis in Ischemic Stroke Patients (TRISP) Study Group.