Funding for this research was provided by:
Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation (TCRD-TPE-110-21)
Received: 27 January 2021
Accepted: 12 August 2021
First Online: 28 August 2021
: The authors are accountable for all aspects of the work in ensuring that questions related to the accuracy or integrity of any part of the work are appropriately investigated and resolved. The study was conducted in accordance with the Declaration of Helsinki (as revised in 2013). This study was approved by the Ethics Committee of and the Institutional Review Board of the Taipei Tzu Chi Hospital, Taipei, Taiwan, ROC (IRB No: 08-X-101), and individual consent for this retrospective analysis was waived.
: Informed consent was obtained from the patient for publication of chest X-ray images.
: The authors declare that they have no competing interests.