" K.G. Andersen et al., “The Proximal Origin of SARS-CoV-2,” Nature Medicine 2020; 26: 450–455; P. Zhou et al, “A Pneumonia Outbreak Associated with a New Coronavirus of Probable Bat Origin,” Nature 2020; 579: 270–273. "

― Nicholas A. Christakis , Apollo's Arrow: The Profound and Enduring Impact of Coronavirus on the Way We Live