TY  - BOOK
ED  - World Health Organization.
TI  - International travel and health: vaccination requirements and health advice : situation as on 1 January 2001
SN  - 9241580267
SN  - 0254-296X
PY  - 2001///
CY  - Geneva
PB  - World Health Organization
KW  - Communicable disease control
KW  - Travel
KW  - Vaccination
KW  - standards
KW  - Risk factors
ER  -