TY  - GEN
AU  - KNORR,M
TI  - [The epidemiological changes of diphtheria since beginning of the pandemia?]
SN  - 0372-8110
PY  - 2003///0501
KW  - Biometry
KW  - Diphtheria
KW  - epidemiology
KW  - Pandemics
N1  - Publication Type: Journal Article
ER  -