Presence of calcitonin gene-related peptide (CGRP) and substance P (SP) immunoreactivity in intraepidermal free nerve endings of cat skin. - Alvarez,F.J.; Cervantes,C.; Blasco,I.; Villalba,R.; Martinez,M.urillo.; Polak,J.M.; Rodrigo,J. (Brain Res, 1988)