title: Ultrastructure of active and inhibited prothoracic glands.
mesh_terms: D000628:Aminophylline / Q000494:pharmacology; D000818:Animals; D007915:Lepidoptera / Q000187:drug effects / Q000648:ultrastructure*; D009490:Neurosecretory Systems / Q000187:drug effects / Q000648:ultrastructure*
chemical_list: D000628:Aminophylline