1. The Fritz-sonian system of treatment Author(s): Fritz, A. Derr, author Publication: [Boston?] : [publisher not identified] [1886] Subject(s): TherapeuticsMagnetic Phenomena
2. The Fritz-sonian system of treatment Author(s): Fritz, A. Derr, author Publication: [Boston?] : [publisher not identified], [1886] Subject(s): TherapeuticsMagnetic Phenomena
