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(A) VKA vs no-VKA, (B) VKA vs APA, (C) VKA vs no-ATM, and (D) APA vs no-ATM. APA = antiplatelet agent; ATM = antithrombotic medication; CI = confidence interval; IS = ischemic stroke; IV = inverse variance; RR = rate ratio; VKA = vitamin K antagonist.
