1.
Dtsch Med Wochenschr
; 95(22): 1229-31, 1970 May 29.
Article
in German
| MEDLINE
| ID: mdl-4193235
2.
Zentralbl Bakteriol Orig
; 211(4): 562, 1969.
Article
in German
| MEDLINE
| ID: mdl-5386504