About the Authors

Hong-Hee Won

Affiliation Samsung Biomedical Research Institute, Seoul, Korea

Woojae Myung

Contributed equally to this work with: Woojae Myung, Doh Kwan Kim

smbhealer@gmail.com (WM); paulkim@skku.edu (DKK)

Affiliation Department of Psychiatry, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea

Gil-Young Song

Affiliation Mining Laboratory, Daumsoft, Seoul, Republic of Korea

Won-Hee Lee

Affiliation Mining Laboratory, Daumsoft, Seoul, Republic of Korea

Jong-Won Kim

Affiliation Laboratory Medicine and Genetics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea

Bernard J. Carroll

Affiliation Pacific Behavioral Research Foundation, Carmel, California, United States of America

Doh Kwan Kim

Contributed equally to this work with: Woojae Myung, Doh Kwan Kim

smbhealer@gmail.com (WM); paulkim@skku.edu (DKK)

Affiliation Department of Psychiatry, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea

Competing Interests

GYS and WHL are employees of the Korean social media company Daumsoft. This does not alter the authors’ adherence to all the PLOS ONE policies on sharing data and materials. No other competing interests exist.

Author Contributions

Conceived and designed the experiments: HHW WM DKK. Analyzed the data: HHW WM JWK. Contributed reagents/materials/analysis tools: GYS WHL. Wrote the paper: HHW WM DKK BJC.