Funding for this research was provided by:
National Natural Science Foundation of China (81572358, 81572332)
Shanghai Pujiang Program (2019PJD052)
Science & Technology Support Program (Medicine Guidance) of Shanghai S&T Committee (124119A4400)
Received: 25 July 2019
Accepted: 26 March 2020
First Online: 1 June 2020
Ethics approval and consent to participate
: The study was approved by the institutional review board of Changhai Hospital in Shanghai, China and conducted in compliance with the declaration of Helsinki. Informed consent was obtained from the two patients.
: Written informed consent for publication of their clinical details and images was obtained from the patients. A copy of the consent form is available for review by the editor of this journal.
: The authors declare that they have no competing interests.