title: Ultrastructure of Dientamoeba fragilis: a study of the mononucleated stage.
mesh_terms: D000818:Animals; D002467:Cell Nucleus / Q000648:ultrastructure; D003593:Cytoplasm / Q000648:ultrastructure; D004029:Dientamoeba / Q000648:ultrastructure*; D008854:Microscopy, Electron