1. Cotugno, not Helmholtz, conceived the theory of hearing [in Italian];Barduzzi;Riv Sto Crit Sci Mediche Nat,1919
2. Domenico Cotugno [in Italian];Bianchi;Riforma Med,1923
3. Valsalva, the founder of cerebrospinal fluid [in Italian];Bilancioni;Policlinico,1911