Abstract
References
1.
Avery
M E
McAfee
J G
Guild
H G
. (1957 ) Amer. J. Med.
22 , 636 .
2.
Cheyne
C
. (1968 ) MChOrth Thesis, Liverpool.
3.
Lewis
J G
. (1964 ) Quart. J. Med.
33 , 337 .
4.
Lightwood
R
. (1955 ) Proc. roy. Soc. Med.
48 , 71 .
5.
Oberman
J A
. (1961 ) Pediatrics
28 , 307 .