Abstract

References
1.
Moberg
G.
(1948 ) Acta radial., Stockh. , 29 , 7 .
2.
Short
D. S.
(1951 ) Quart. J. Med. , 44 , 233 .
3.
Westermark
N.
(1938 ) Acta radiol., Stockh. , 19 , 357 .
