title: The dilemma of opioid-induced hyperalgesia and tolerance in chronic opioid therapy.
authors.affiliation: Department of Anaesthesia & Intensive Care, Sultan Qaboos University Hospital, Muscat, Oman;
authors.forename: Qutaiba Amir
authors.initials: QA
authors.lastname: Tawfic
authors.forename: Ali S
authors.initials: AS
authors.lastname: Faris
authors.forename: Rohit R
authors.initials: RR
authors.lastname: Date