000 00364nam a2200109Ia 4500
008 160509s9999 xx 000 0 und d
100 _aWorld Health Organization
245 _aTropical Disease Research Progress 1997 -1998 : 1999World Health Organization
260 _bWorld Health Organization
_c1999
300 _a58p.
650 _aTropical Disease Research Progress
999 _c10719
_d10719