Abstract
References
1.
Dubois
E L
Tuffanelli
D L
. (1964 ) J. Amer. med. Ass.
190 , 104 .
2.
Maddock
R K
Jr
(1965 ) J. Amer. med. Ass.
191 , 137 .
3.
Urowitz
M B
Stevens
M B
Shulman
L E
. (1967 ) Arthr. and Rheum.
10 , 319 .