title: Promoting activity of extracellular materials on sponge cell reaggregation.
mesh_terms: D000818:Animals; D000941:Antigens; D002449:Cell Aggregation; D005110:Extracellular Space; D005779:Immunodiffusion; D011161:Porifera / Q000276:immunology* / Q000378:metabolism
chemical_list: D000941:Antigens