Abstract

References
1.
Dubois
E L
Arterberry
J D
. (1962 ) J. Amer. med. Ass.
181 , 366 .
2.
Dubois
E L
Cozen
L
. (1960 ) J. Amer. med. Ass.
174 , 966 .
3.
Siemsen
J K
Brook
J
Meister
L
. (1962 ) Arthr. & Rheum.
5 , 492 .
