Abstract
References
1.
Barlow
T G
. (1962 ) J. Bone Jt Surg.
44B , 292 .
2.
Dunn
P M
. (1969 ) MD Thesis, Cambridge.
3.
Laurenson
R D
. (1965 ) J. Bone Jt Surg.
47A , 975 .
4.
Palmén
K
. (1961 ) Acta paediat. (Uppsala)
50 , Suppl. 129 .