title: Interactions between mesoderm and ectoderm in segment formation in the embryo of a glossiphoniid leech.
mesh_terms: D000818:Animals; D002970:Cleavage Stage, Ovum / Q000187:drug effects; D003850:Deoxyribonuclease I; D003851:Deoxyribonucleases / Q000494:pharmacology; D004475:Ectoderm / Q000033:anatomy & histology / Q000502:physiology; D004720:Endonucleases / Q000494:pharmacology; D006651:Histocytochemistry; D007865:Leeches / Q000196:embryology*; D008648:Mesoderm / Q000033:anatomy & histology / Q000502:physiology
chemical_list: D003851:Deoxyribonucleases; D004720:Endonucleases; D003850:Deoxyribonuclease I