Comparison between Neutralization Capacity of Antibodies Elicited by COVID-19 Natural Infection and Vaccination in Indonesia: A Prospective Cohort oleh Sitti Nurisyah, Mitsuhiro Iyori, Ammar Abdurrahman Hasyim, Akihiko Sakamoto, Hinata Hashimoto, Kyouhei Yamagata, Saya Yamauchi, Khaeriah Amru, Kartika Hardianti Zainal, Irfan Idris, Shigeto Yoshida, Irawaty Djaharuddin, Din Syafruddin, Agussalim Bukhari, Puji Budi Setia Asih, Yenni Yusuf