TY  - BOOK
TI  - International travel and health: situation as on 1 January 2011
SN  - 9789241580465
U1  - 616.9802 
PY  - 2011///
CY  - Geneva
PB  - WHO
KW  - TRAVEL MEDICINE
KW  - Communicable disease control
KW  - Risk factors
KW  - Travel
KW  - Vaccination-standards
ER  -