Clinical significance of prolonged chest pain in vasospastic angina
Hiroki Teragawa, Chikage Oshita, Yuichi Orita, Department of Cardiovascular Medicine, JR Hiroshima Hospital, Hiroshima 732-0057, Japan
Author contributions: Orita Y and Oshita C contributed to the acquisition of data; Teragawa H contributed to the writing and revision of the manuscript.
Institutional review board statement: This study was approved by the Institutional Review Board of Medical Corporation JR Hiroshima Hospital.
Informed consent statement: Informed consent was obtained from all of the patients.
Conflict-of-interest statement: None of the authors have any conflicts of interest to declare.
Data sharing statement: No additional data.
STROBE statement: The guidelines of the STROBE statement have been adopted.
Open-Access: This article is an open-access article that was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution NonCommercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/
Corresponding author: Hiroki Teragawa, FACC, FACP, FAHA, MD, PhD, Chief Doctor, Department of Cardiovascular Medicine, JR Hiroshima Hospital, 3-1-36 Futabanosato, Higashi-ku, Hiroshima 732-0057, Japan. firstname.lastname@example.org
Received: June 2, 2020
Peer-review started: June 28, 2020
First decision: June 15, 2020
Revised: June 28, 2020
Accepted: September 15, 2020
Article in press: September 15, 2020
Published online: September 26, 2020