About the Authors

Zhongli Bao

Roles Formal analysis, Investigation, Methodology, Writing – original draft, Writing – review & editing

Affiliation Amphastar Pharmaceuticals, Inc., Rancho Cucamonga, California, California, United States of America

Ya-Chi Cheng

Roles Data curation, Formal analysis, Investigation, Methodology, Writing – original draft, Writing – review & editing

Affiliation Amphastar Pharmaceuticals, Inc., Rancho Cucamonga, California, California, United States of America

Mary Ziping Luo

Roles Validation, Writing – original draft, Writing – review & editing

Affiliation Amphastar Pharmaceuticals, Inc., Rancho Cucamonga, California, California, United States of America

Jack Yongfeng Zhang

Roles Conceptualization, Supervision, Writing – review & editing

productoffice@amphastar.com

Affiliation Amphastar Pharmaceuticals, Inc., Rancho Cucamonga, California, California, United States of America

Competing Interests

I have read the journal’s policy and the authors of this manuscript have the following competing interests: The authors are employees of Amphastar Pharmaceuticals, Inc. at the time of the study and article preparation. This does not alter our adherence to PLOS ONE policies on sharing data and materials.