title: Observations on the structural arrangement of the somatic sensory innervation in the iris of mammals.
mesh_terms: D000818:Animals; D002415:Cats; D002924:Ciliary Body / Q000294:innervation; D006168:Guinea Pigs; D006801:Humans; D007498:Iris / Q000294:innervation*; D008722:Methods; D008854:Microscopy, Electron; D009186:Myelin Sheath; D009410:Nerve Degeneration; D009413:Nerve Fibers, Myelinated; D011817:Rabbits; D051381:Rats; D013552:Swine; D014357:Trypsin
chemical_list: D014357:Trypsin