Bullen, C. K., H. T. Hogberg, A. Bahadirli-Talbott, W. R. Bishai, T. Hartung, C. Keuthan, M. M. Looney, A. Pekosz, J. C. Romero, F. C. M. Sillé, P. Um, and L. Smirnova. “Infectability of Human BrainSphere Neurons Suggests Neurotropism of SARS-CoV-2”. ALTEX - Alternatives to Animal Experimentation, vol. 37, no. 4, Oct. 2020, pp. 665-71, doi:10.14573/altex.2006111.