Abstract

References
1.
Beard
R
Morris
E D
. (1965 ) J. Obstet. Gynœc. Brit. Cwlth
68 , 74 .
2.
Daniel
S S
Adamsons
K
James
L S
. (1966 ) Pediatrics
37 , 942 .
3.
Derom
R
. (1964 ) Amer. J. Obstet. Gynec . 89 , 241 .
4.
Friedman
E M
Gray
M J
Gynfogel
M
Hutchinson
D L
Kelly
W T
Plentl
A A
. (1960 ) J. clin. Invest . 29 , 622 .
5.
Hendricks
C H
. (1957 ) Amer. J. Obstet. Gynec . 73 , 492 .
6.
Low
J A
. (1963 ) Obstet. and Gynec . 22 , 15 .
7.
Otey
E
Sterger
V
Eitzman
D
Andersen
T
Guessner
I
Prytowsky
H
. (1964 ) Amer. J. Obstet. Gynec . 90 , 747 .
8.
Samueloff
S
Koren
E
Brzenski
A
. (1961 ) J. Obstet. Gynœc. Brit. Cwlth
68 , 74 .
9.
Siggaard-Andersen
O
Engel
K
. (1960 ) Scand. J. clin. lab. Invest . 12 , 177 .
