References
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- van dee Tuuk (1938) Fortschr. a. d. Geb. der Rontgenstr., p. 83.
- Taylor, Lauriston , Singer and Charlton (1939) Am. J. of Ro., p. 256.
- Failla (1933) Am. J. of Ro., p. 352.
- Exner and Packard (1935) Radiology, p. 391.
- Henshaw and Francis (1936) Radiology, p. 569.
- Leucutia (1936) Am. J. of Ro., p. 350.
- Mudd, Emery, Meland and Costolow (1934) Am. J. of Ro., p. 521.
- den Hoed (1935) Radiology, p. 57.
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- Leucutia and Corrigan (1934) Am. J. of Ro., p. 629.
- von Schubert (1932) Strahlentherapie., p. 293.
- Herendeen (1935) Am. J. of Ro., p. 659.
- Ruggles (1936) Am. J. of Ro., p. 366.
- Stone (1938) Radiology., p. 88.
- Schmitz (1936) Radiology., p. 311.