![](https://giornaleitalianodinefrologia.it/wp-content/uploads/sites/3/2018/01/Figure-9-Small.png?x85047)
Figure 9 (Small)
Figure 9. Two pioneers of modulation of immunity. (Left) Ludwig Hektoen (1863-1951) of the John McCormick Institute in Chicago (now the Hektoen Institute), who studied irradiation, benzol and nitrogen mustard, and (Right) Glanville Yeisley Rusk (1875-1943) of California who first noted that benzol depressed antibody formation.