[Vaccinations in international travel, their performance and difficulties].
D022121:Cholera Vaccines; D006801:Humans; D012900:Smallpox Vaccine; D014195:Travel; D014611:Vaccination; D015005:Yellow fever virus
D022121:Cholera Vaccines; D012900:Smallpox Vaccine
Impfungen im internationalen Reiseverkehr, ihre Durchführung und ihre Schwierigkeiten.