title: An old-timer's look at parasite physiology.
mesh_terms: D001200:Ascaris / Q000502:physiology; D056890:Eukaryota / Q000502:physiology; D006003:Glycogen / Q000378:metabolism; D006376:Helminths / Q000378:metabolism; D049672:History, 19th Century; D049673:History, 20th Century; D010274:Parasitology / Q000266:history*; D012106:Research / Q000266:history
chemical_list: D006003:Glycogen