Nurisyah S, Iyori M, Hasyim AA, Amru K, Itani K, Nakamura K, Zainal KH, Halik H, Djaharuddin I, Bukhari A, Asih PB, Syafruddin D, Yoshida S, Idris I, Yusuf Y. Evaluation of an E. coli-expressed spike protein-based in-house ELISA system for assessment of antibody responses after COVID-19 infection and vaccination. Narra J [Internet]. 2025Mar.13 [cited 2025Aug.11];5(1):e1250. Available from: https://narraj.org/main/article/view/1250