title: Phrenic Nerve Stimulation Caused by Asymptomatic Pneumothorax.
authors.affiliation: Division of Cardiology, Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan.
authors.forename: Po-Kai
authors.initials: PK
authors.lastname: Yung
authors.affiliation: Division of Cardiology, Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan.
authors.forename: Ju-Yi
authors.initials: JY
authors.lastname: Chen