title: Immunoreactive thyrotrophin releasing factor in gastropod circumoesophageal ganglia.
mesh_terms: D000818:Animals; D005075:Biological Evolution; D005724:Ganglia / Q000032:analysis*; D008974:Mollusca / Q000032:analysis*; D011863:Radioimmunoassay; D012908:Snails; D013045:Species Specificity; D009435:Synaptic Transmission; D013973:Thyrotropin-Releasing Hormone / Q000032:analysis* / Q000276:immunology / Q000502:physiology
chemical_list: D013973:Thyrotropin-Releasing Hormone