title: A technique for selecting uniform samples of Schistosoma mansoni based on egg production.
mesh_terms: D000818:Animals; D005260:Female; D007106:Immune Sera / Q000276:immunology; D008297:Male; D010063:Ovum / Q000502:physiology; D010274:Parasitology / Q000379:methods*; D012098:Reproduction; D012550:Schistosoma mansoni / Q000276:immunology / Q000502:physiology*
chemical_list: D007106:Immune Sera