1
Publikováno v:
Archives of neurology [Arch Neurol] 1965 Mar; Vol. 12, pp. 326-31.
2
Publikováno v:
Neurochirurgia [Neurochirurgia (Stuttg)] 1964 Aug; Vol. 7, pp. 142-6.
3
Publikováno v:
Virginia medical monthly [Va Med Mon (1918)] 1956 Jul; Vol. 83 (7), pp. 305-6.