Funding for this research was provided by:
Sunshine GuoJian pharmaceutical
Article History
Received: 3 November 2019
Revised: 22 January 2020
Accepted: 23 January 2020
First Online: 31 March 2020
Compliance with Ethical Standards
:
: The authors report no conflicts of interest in this work.
: Gibco Freedom CHO-DG44 cell and freedom pCHO1.0 mammalian cell expression vector in this paper were purchased commercially from ThermoFisher scientific and institutional approval was not needed.