Editorial: Novel Therapeutic Potential for Pituitary Adenylate Cyclase-Activating Polypeptide (PACAP), Vasoactive Intestinal Peptide (VIP) and Related Peptides in Cognition Deficits - Ciranna, Lucia; Reglodi, Dora; Chow, Billy K.; Vaudry, David (Frontiers in Cellular Neuroscience, 2021)