Funding for this research was provided by:
Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences and Peking Union Medical College (CAMS-2017-I2M-1-002)
Received: 23 August 2018
Accepted: 27 May 2019
First Online: 19 June 2019
Ethics approval and consent to participate
: The Institutional Review Board of Peking Union Medical College Hospital had approved this study (ID HS-1390). All four cases had presented their consents to participate the study.
: We are very honored to give the consent for publication of our study.
: The authors declare that they have no competing interests.