Zhang, Jing
Li, Gang
Laukkanen, Jari A.
Liu, Cheng
Song, Xing
Zhu, Yuqi
Funding for this research was provided by:
Health Bureau of Chongqing City, China (No. 04-2-154, No. 2009-2-290)
Chongqing Science & Technology Commission in Chongqing City, China (CSTC, No. 2007BB5276)
Article History
Received: 10 February 2021
Accepted: 2 June 2021
First Online: 22 June 2021
Competing interests
: The authors declare no competing interests.