Author Affiliations +
Enrico Sertoli1,*,**
1Department of Anatomy and Cell Biology, Brody School of Medicine, East Carolina University, Greenvil
*Correspondence: Department of Anatomy and Cell Biology, Brody School of Medicine, East Carolina University, 115 Heart Boulevard, office #4112, Greenville, NC 27834, USA. E-mail: geyerc@ecu.edu
**Contributors: Contributed and edited by Chris Geyer from an original manuscript by Enrico Sertoli. The text was translated by Elisa Salemi (University of North Carolina at Chapel Hill), and Dr. Susanne Jones (East Carolina University) assisted with passages in German. The original artwork was reproduced by Katya Harris (East Carolina University).