About the Authors

Kamen P. Simeonov

kamen.simeonov@gmail.com

Affiliation Department of Investigative Toxicology, Genentech, South San Francisco, California, United States of America

Hirdesh Uppal

Affiliation Department of Investigative Toxicology, Genentech, South San Francisco, California, United States of America

Competing Interests

The work was funded by Genentech, performed internally at Genentech, and all authors are employed by Genentech. Two patent applications are filed related to this work: 1. Simeonov KP, Uppal H. Methods and Compositions for Producing Induced Hepatocytes. US20140087416 A1, March 27, 2014 (https://www.google.com/patents/US20140087416); 2. Simeonov KP, Uppal H. Methods and Compositions for Producing Induced Hepatocytes. WO2014039768 A1, March 13, 2014. (http://www.google.com/patents/WO2014039768A1?cl=en). The authors are the inventors listed on the patent applications but have no financial stake in either application. Both patent applications are wholly owned by the funder. There are no further patents, products in development or marketed products to declare. This does not alter the authors' adherence to all the PLOS ONE policies on sharing data and materials, as detailed online in the guide for authors.

Author Contributions

Conceived and designed the experiments: KPS HU. Performed the experiments: KPS. Analyzed the data: KPS. Contributed reagents/materials/analysis tools: KPS HU. Wrote the paper: KPS.