000 00611nam a2200217Ia 4500
008 180116s2000 xxu||||| |||| 00| 0 eng d
020 _a92 4 158025 9
082 _aWA110
_bWHO
100 _a World Health Organization
245 _aInternational travel and health
_bvaccination requirements and health advice.
250 _a
260 _aGeneva
_bW H O
_c2000
300 _a108 p.
_b26 cm.
440 _a
_v
500 _a
520 _a Coomunicable Disease Control, Travel, Risk Factors
650 _aRisk Factors
650 _aTravel
650 _aCoomunicable Disease Control
906 _a379
_b
_c
999 _c26779
_d26779