00534nam a2200181Ia 450000500170000000800410001702000180005803500090007604100080008508200120009310000300010524500550013526000450019030000070023550000090024250500630025165000380031420260808125505.0260808s9999||||xx |||||||||||||| ||und||  a92-4-154407-4  a6182  aENG  a615.995  aWorld Health Organization 0aHealth education in the control of schistosomiasis  aGenevabWorld Health Oraganizationc1990  a61  aGift  aWHO, pharmaceutical standards, international pharmacopoeia  aWHObPharmacology -- Therapeutics