1. Andersen, Strahlenther.18, 865 (1924); Münch. med. Wschr.1924, 933.
2. Becker, Münch. med. Wschr.10, 20 (1925); Arch. f. exper. Path.86, 87.
3. Benjamin undv. Reuss, Münch. med. Wschr.1906, 1862.
4. Bernhardt, Klin. Wschr.2, 1795 (1923); Z. klin. Med.98, 50 (1924).
5. Bickel, Allg. med. Centralztg1920, Nr 45.