TY  - GEN
AU  - KALMAN,E
TI  - [Present state of mass surveys for syphilis]
SN  - 0369-3805
PY  - 2003///0501
KW  - Biomedical Research
KW  - Data Collection
KW  - Humans
KW  - Molecular Weight
KW  - Syphilis
KW  - prevention & control
N1  - Publication Type: Journal Article
ER  -