title: Preface.
authors.affiliation: Department of Pharmacology and Physiology, Drexel University College of Medicine, Philadelphia, Pennsylvania, USA.
authors.forename: James E
authors.initials: JE
authors.lastname: Barrett
authors.affiliation: Department of Molecular and Integrative Physiology, Department of Pharmacology, Toxicology and Therapeutics, University of Kansas Medical Center, Kansas City, Kansas, USA.
authors.forename: S J
authors.initials: SJ
authors.lastname: Enna
mesh_terms: D000818:Animals; D035843:Biomedical Research; D006801:Humans; D058990:Molecular Targeted Therapy; D010146:Pain / Q000188:drug therapy / Q000378:metabolism