title: On the relative stimulating efficacy of sine wave and square wave voltages at frequencies exceeding the optimum frequency for sine waves.
authors.forename: E M
authors.initials: EM
authors.lastname: BRUINS
authors.forename: J W
authors.initials: JW
authors.lastname: DUYFF
authors.forename: W G
authors.initials: WG
authors.lastname: WALTER
mesh_terms: D006801:Humans; D011840:Radiation, Nonionizing