Ra?l Esparza

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3624697/.  ^ Magnoni S, Esparza TJ, Conte V, Carbonara M, Carrabba G, Holtzman DM, Zipfel GJ, Stocchetti

Livia; Tausch, Simon H.; Dabrowski, P. Wojciech; Damaso, Clarissa R.; Esparza, José; Nitsche, Andreas (10 12, 2017). “An Early American Smallpox Vaccine