title: Response to letter to the editor: "safety profile of intravenous patient-controlled analgesia for breakthrough pain in cancer patients: a case series study".
authors.affiliation: Cancer Institute of the State of Sao Paulo, Sao Paulo, Brazil, angela-sousa@uol.com.br.
authors.forename: A M
authors.initials: AM
authors.lastname: Sousa
authors.forename: G M N
authors.initials: GM
authors.lastname: Guimaraes
authors.forename: H A
authors.initials: HA
authors.lastname: Ashmawi
mesh_terms: D016058:Analgesia, Patient-Controlled / Q000009:adverse effects* / Q000379:methods*; D059390:Breakthrough Pain / Q000188:drug therapy*; D005260:Female; D006801:Humans; D008297:Male; D009369:Neoplasms / Q000150:complications*
references.citation: Pain. 2010 Jun;149(3):476-482
references.pmid: 20236762
references.citation: Curr Pain Headache Rep. 2014 Jun;18(6):420
references.pmid: 24760489