Abstract
References
1.
Spiller
W. G.
(1902 ), Am. J. M. Sc. , 124 , 44 –55 .
2.
Stookey
Byron
Scarff
John
(1936 ), Bull. Neurol. Inst. New York , 5 , 348 –377 .
3.
Twining
E. W.
(1939 ), Brit. J. Radiol. , 12 , 385 –418 , 569 –598 .
4.
Dandy
W. E.
(1922 ), J. H. Bulletin , 33 , 189 –190 .
5.
Mixter
J.
(1923 ), Boston M. & S. J. , 188 , 277 –278 .