title: Cancer pain: how to measure the fifth vital sign.
authors.affiliation: Harry R. Horvitz Center for Palliative Medicine, The Cleveland Clinic Foundation, OH 44195, USA. davism6@ccf.org
authors.forename: Mellar P
authors.initials: MP
authors.lastname: Davis
authors.forename: Declan
authors.initials: D
authors.lastname: Walsh
mesh_terms: D006801:Humans; D008487:Medical History Taking; D009369:Neoplasms / Q000150:complications*; D010146:Pain / Q000209:etiology*; D010147:Pain Measurement / Q000379:methods*; D010808:Physical Examination