Fig. 1From: Managing postoperative atrial fibrillation after open-heart surgery using transdermal β1 blockersMidway peel test: changes in the plasma bisoprolol levels. This figure was reprinted from the article (Reference #4) with the author’s permission, and some parts were translated into English and reorganized. At approximately 4 h after the patch is removed after a single use, the plasma bisoprolol level gradually decreasesBack to article page