1. Quillen College of Medicine, Wayne State University, 660 South Euclid Avenue, St. Louis, MO, USA
2. Quillen College of Medicine, East Tennessee State University, 329 North State of Franklin Road, Johnson City, TN, USA
3. Quillen College of Medicine, Washington University of St. Louis, 660 South Euclid Avenue, Campus, St. Louis, MO, USA
4. Florida Polytechnic University, 4700 Research Way, Lakeland, FL, USA