Readers should cite both the Bio-protocol preprint and the original research article where this protocol was used:

Gao, Q, Ge, X, Lu, J, Li, C, Wang, X, Yin, W, Zhang, Y and Qin, C(2023). Enzyme linked immunosorbant assay (ELISA). Bio-protocol Preprint. bio-protocol.org/prep2172.
Gao, Q., Bao, L., Mao, H., Wang, L., Xu, K., Yang, M., Li, Y., Zhu, L., Wang, N., Lv, Z., Gao, H., Ge, X., Kan, B., Hu, Y., Liu, J., Cai, F., Jiang, D., Yin, Y., Qin, C., Li, J., Gong, X., Lou, X., Shi, W., Wu, D., Zhang, H., Zhu, L., Deng, W., Li, Y., Lu, J., Li, C., Wang, X., Yin, W., Zhang, Y. and Qin, C.(2020). Development of an inactivated vaccine candidate for SARS-CoV-2 . Science 369(6499). DOI: 10.1126/science.abc1932