title: An unaddicted impact factor.
authors.affiliation: Department of Clinical and Molecular Medicine, Sapienza University, Rome, Italy. paolo.martelletti@uniroma1.it.
authors.forename: Paolo
authors.initials: P
authors.lastname: Martelletti
mesh_terms: D006261:Headache; D055811:Journal Impact Factor; D010146:Pain; D010506:Periodicals as Topic