Media type: E-Article Title: Fentanyl Formulations in the Management of Pain: An Update Contributor: Schug, Stephan A.; Ting, Sonya Published: Springer Science and Business Media LLC, 2017 Published in: Drugs, 77 (2017) 7, Seite 747-763 Language: English DOI: 10.1007/s40265-017-0727-z ISSN: 0012-6667; 1179-1950 Origination: Footnote: