Author Contributions
Weixin Zhao and Anthony Atala conceived and supervised the study. Weixin
Zhao
and Ruixin Hou designed experiments. Qianheng Jin performed experiments.
Qianheng Jin and Guangzhe Jin wrote the manuscript. Weixin Zhao revised
the manuscript. Guangzhe Jin, Jihui Ju, Lei Xu, Linfeng Tang, Yi Fu
analyzed data, and commented on the manuscript.