About the Authors

Yeonsoo Jang

Affiliation College of Nursing, Mo-Im Kim Nursing Research Institute, Yonsei University, Seoul, Korea

Anna Shin

sheisannie@hotmail.com

Affiliation Department of Public Health, College of Medicine, Yonsei University, Seoul, Korea

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

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