Funding for this research was provided by:
Nonprofit Central Research Institute Fund of the Chinese Academy of Medical Sciences (2017PT32001, 2018PT32012)
Received: 20 March 2019
Accepted: 29 August 2019
First Online: 6 September 2019
Ethics approval and consent to participate
: Not applicable.
: Written informed consent for the publication of this article and any accompanying images was obtained from the family members of the patient.
: The authors declare that they have no competing interests.