title: Horseradish peroxidase nerve backfilling in leech.
mesh_terms: D000818:Animals; D001369:Axons / Q000648:ultrastructure; D005724:Ganglia / Q000033:anatomy & histology*; D005837:Genitalia, Male / Q000294:innervation*; D006652:Histological Techniques; D006735:Horseradish Peroxidase; D007865:Leeches; D008297:Male; D009415:Nerve Net / Q000033:anatomy & histology; D009474:Neurons / Q000648:ultrastructure
chemical_list: D006735:Horseradish Peroxidase