1.
J Hyg Epidemiol Microbiol Immunol
; 13(3): 293-9, 1969.
Article
in English
| MEDLINE
| ID: mdl-4309831
2.
Immunology
; 13(2): 219-21, 1967 Aug.
Article
in English
| MEDLINE
| ID: mdl-4378145