000 00326nam a2200097Ia 4500
008 220729s2001 xx 000 0 und d
041 _aeng
100 _aWHO
245 _aInternational travel and health: vaccination requirements and health advice situation as on 1 jan- 2001
260 _aGeneva
_bWHO Regional Publications
_c2001
999 _c131866
_d131866