Alfaray, R. I.; Rahmah, F. N.; Yodianto, L.; Johan, A. R. D.; Habibi, M. R.; Abdurrachman, S.; Ayu Rezkitha, Y. A.; I’tishom, R.; Yamaoka, Y.; Miftahussurur, M. COVID-19 and Hepatitis B Ambassador of Surabaya, Indonesia: Motivation, Commitment, and Knowledge of Youth Generation towards Health Programs in the Pandemic Era. Gac Méd Caracas 2021, 129, S390-S402.