About the Authors

Mi-Yoon Chang

Affiliation Molecular Neurobiology Laboratory, McLean Hospital, Harvard Medical School, Belmont, Massachusetts, United States of America

Dohoon Kim

Affiliation Molecular Neurobiology Laboratory, McLean Hospital, Harvard Medical School, Belmont, Massachusetts, United States of America

Chun-Hyung Kim

Affiliation Molecular Neurobiology Laboratory, McLean Hospital, Harvard Medical School, Belmont, Massachusetts, United States of America

Hoon-Chul Kang

Current address: Department of Pediatrics, Severance Children's Hospital, Yonsei University, Seoul, Korea

Affiliation Molecular Neurobiology Laboratory, McLean Hospital, Harvard Medical School, Belmont, Massachusetts, United States of America

Eungi Yang

Affiliation Molecular Neurobiology Laboratory, McLean Hospital, Harvard Medical School, Belmont, Massachusetts, United States of America

Jung-Il Moon

Affiliation Molecular Neurobiology Laboratory, McLean Hospital, Harvard Medical School, Belmont, Massachusetts, United States of America

Sanghyeok Ko

Affiliation Molecular Neurobiology Laboratory, McLean Hospital, Harvard Medical School, Belmont, Massachusetts, United States of America

Junpil Park

Affiliation Molecular Neurobiology Laboratory, McLean Hospital, Harvard Medical School, Belmont, Massachusetts, United States of America

Kyung-Soon Park

Affiliation CHA Stem Cell Institute, Pochon CHA University College of Medicine, Seoul, Korea

Kyung-Ah Lee

Affiliation CHA Stem Cell Institute, Pochon CHA University College of Medicine, Seoul, Korea

Dong-Youn Hwang

Affiliation CHA Stem Cell Institute, Pochon CHA University College of Medicine, Seoul, Korea

Young Chung

Affiliation Stem Cell International, Inc., Worcester, Massachusetts, United States of America

Robert Lanza

Affiliation Stem Cell International, Inc., Worcester, Massachusetts, United States of America

Kwang-Soo Kim

kskim@mclean.harvard.edu

Affiliations Molecular Neurobiology Laboratory, McLean Hospital, Harvard Medical School, Belmont, Massachusetts, United States of America, Harvard Stem Cell Institute, Cambridge, Massachusetts, United States of America, CHA Stem Cell Institute, Pochon CHA University College of Medicine, Seoul, Korea

Competing Interests

Among the coauthors, Dr. Young Chung and Dr. Robert Lanza are employed by Stem Cell International Inc. However, this does not alter the authors' adherence to all the PLoS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: MYC DK CHK KSK. Performed the experiments: MYC DK CHK HCK EY JIM SK JP YC. Analyzed the data: MYC DK CHK HCK JIM SK KSP KAL DYH YC RL KSK. Wrote the paper: MYC DK CHK KSK.