Published on in Vol 21 , No 12 (2019) :December
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/15401, first published
.

1 Department of Endocrinology and Metabolism, Shanghai Clinical Center for Diabetes, Shanghai Diabetes Institute, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai, China
*these authors contributed equally