title: In memoriam Norman R. Stoll--one of the world's great parasitologists.
mesh_terms: D049673:History, 20th Century; D006725:Hookworm Infections; D006801:Humans; D010270:Parasite Egg Count / Q000379:methods; D010274:Parasitology / Q000193:education / Q000266:history; D014481:United States