International travel and health :
International travel and health : Situation as on 1 Jenuary 2010 /
World Health Organization.
- Geneva : World Health Organization, 2010.
- x, 248 p. ; 20 cm.
Includes bibliographical references and index
978-92-4-158045-8
Communicable disease control
Travel
Vaccination--standards
Risk factors
Includes bibliographical references and index
978-92-4-158045-8
Communicable disease control
Travel
Vaccination--standards
Risk factors