Abstract

References
1.
Coakley
W T
Hughes
D E
Slade
J S
Laurence
K M
. (1971 ) Brit. med. J.
i , 109 .
2.
Brown
W M Court
Buckton
K E
Jacobs
P A
Tough
I M
Kuenssberg
E V
Knox
J D E
. (1966 ) Eugen. Lab. Mem.
42 .
3.
Kohn
G
Robinson
A
. (1970 ) Lancet
ii , 778 .
4.
Lubs
H A
Samuelson
J
. (1966 ) Cytogenetics
6 , 402 .
5.
Macintosh
I J C
Davey
D A
. (1970 ) Brit. med. J.
iv , 92 .
6.
Milunsky
A
Littlefield
J W
Atkins
L
. (1970 ) Lancet
ii , 979 .
7.
Moorhead
P S
Nowell
P C
Mellman
W J
Battips
D M
Hungerford
D A
. (1960 ) Exp. Cell Res.
20 , 613 .
8.
Serr
D M
Padeh
B
Zakut
H
Shaki
R
Mannor
S M
Kalner
B
. (1971 ) European Congress of Perinatal Medicine , London , April 1970 (in press).
