1.
Cesk Epidemiol Mikrobiol Imunol
; 24(3): 129-35, 1975 May.
Article
in Slovak
| MEDLINE
| ID: mdl-126810
2.
Cesk Epidemiol Mikrobiol Imunol
; 21(4): 191-6, 1972 Jul.
Article
in Czech
| MEDLINE
| ID: mdl-4262244