References
- Berczeller and Kugler (1937) Archiv f. klin. Chir, 190, p. 810.
- (1938) Elvidge: Proc. Assoc. for Research in Nerv. and Ment. Dis, p. 125.
- (1934) Moniz: L'Angiographie cerebrale, Masson et Cie; Paris
- (1945) Radner: Acta radiol, p. 497.
- (1937) Shimidzu: Archiv f. klin. Chir, 188, p. 295.
- Sjoquist (1938) Der Chirurg, p. 377.
- (1940) Takahashi: Archiv f. Psychiatrie, 111, p. 373.