Dr. Carl Beck and the Mayos.
Nelson
C W
CW
Mayo Historical Unit, Mayo Clinic, Rochester, MN 55905.
D015709:Correspondence as Topic / Q000266:history; D003604:Czechoslovakia; D013502:General Surgery / Q000266:history; D049672:History, 19th Century; D049673:History, 20th Century; D010336:Pathology / Q000266:history; D014481:United States