title: Reply to S. Mercadante et al.
authors.affiliation: University of Milan; Istituto di Ricovero e Cura a Carattere Scientifico, Istituto di Ricerche Farmacologiche "Mario Negri," Milan, Italy mariateresa.greco@marionegri.it.
authors.forename: Maria Teresa
authors.initials: MT
authors.lastname: Greco
authors.affiliation: Istituto di Ricovero e Cura a Carattere Scientifico, Istituto di Ricerche Farmacologiche "Mario Negri," Milan, Italy.
authors.forename: Anna
authors.initials: A
authors.lastname: Roberto
authors.affiliation: Istituto di Ricovero e Cura a Carattere Scientifico, Istituto di Ricerche Farmacologiche "Mario Negri," Milan, Italy.
authors.forename: Oscar
authors.initials: O
authors.lastname: Corli
authors.affiliation: European Commission, Joint Research Centre, Ispra, Italy.
authors.forename: Silvia
authors.initials: S
authors.lastname: Deandrea
authors.affiliation: Azienda Unita Sanitaria Locale di Modena, Modena, Italy.
authors.forename: Elena
authors.initials: E
authors.lastname: Bandieri
authors.affiliation: Istituto di Ricovero e Cura a Carattere Scientifico, Arcispedale "S. Maria Nuova," Reggio Emilia, Italy.
authors.forename: Silvio
authors.initials: S
authors.lastname: Cavuto
authors.affiliation: Istituto di Ricovero e Cura a Carattere Scientifico, Arcispedale "S. Maria Nuova," Reggio Emilia, Italy.
authors.forename: Giovanni
authors.initials: G
authors.lastname: Apolone
mesh_terms: D006801:Humans; D009369:Neoplasms / Q000503:physiopathology*; D059408:Pain Management / Q000592:standards*; D010148:Intractable Pain / Q000188:drug therapy*