Petrova, B., Syphurs, C., Culhane, A. J., Chen, J., Chen, E., Cotsapas, C., Esserman, D., Montgomery, R. R., Kleinstein, S. H., Smolen, K. K., Mendez, K., Lasky-Su, J., Steen, H., Levy, O., Diray-Arce, J., Kanarek, N. (2025). MTHFR allele and one-carbon metabolic profile predict severity of COVID-19. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.2509118122