the dwarf tapeworm , hymenolepis nana , was studied by means of scanning and transmission electron microscopy after in vitro exposure to 1 , 10 , and 100 micrograms/ml of the anthelmintic praziquantel ( droncit ) for 5 , 15 , 30 , and 60 min .
C0003158
anthelmintic
C0032911
praziquantel