Abstract
References
1.
Eisenberg
P.
(1918 ) Zbl. Bakt., Abt. 1, Orig. , 82 , 69 .
2.
Pilcher
J. D.
Sollmann
T.
(1924 ) J. Lab. clin. Med. , 9 , 256 .
3.
Seltzer
S.
(1942 ) J. dent. Res. , 21 , 269 .