Abstract
References
1.
Angel
J H
Sash
L
. (1960 ) Brit. med. J . i , 1855
2.
Buchanan
K D
McKiddie
M T
Reid
J M
. (1967 ) Postgrad, med. J . 43 , 114
3.
Nielsen
P E
Ranlev
P
. (1964 ) Acta endoc. (Kbh.)
45 , 353
4.
Nordqvist
P
Dhunér
K-G
Stenberg
K
Örndahl
C
. (1960 ) Acta med. scand . 166 , 189