<unk>  (20 August 1891, Charlottenburg -21 December 1969, Leiden) was a German dermatologist who first described many skin diseases and was one of the inventors of the twin study.
Hermann Werner Siemens
Nicholas J. Vogelzang
Eugen Bleuler
Salvador Luria
Karl Jaspers
Geneticist
Steven Rosenberg
Elaine Gottschall