title: Response to Ruan et al., EJP 2016.
authors.affiliation: Center for Evidence-based Healthcare & Comprehensive Pain Center, University Hospital and Medical Faculty Carl Gustav Carus, TU Dresden, Germany.
authors.forename: U
authors.initials: U
authors.lastname: Kaiser
authors.affiliation: Center for Evidence-based Healthcare & Comprehensive Pain Center, University Hospital and Medical Faculty Carl Gustav Carus, TU Dresden, Germany. stefanie.deckert@uniklinikum-dresden.de.
authors.forename: S
authors.initials: S
authors.lastname: Deckert
authors.affiliation: Center for Evidence-based Healthcare & Comprehensive Pain Center, University Hospital and Medical Faculty Carl Gustav Carus, TU Dresden, Germany.
authors.forename: C
authors.initials: C
authors.lastname: Kopkow
authors.affiliation: Center for Evidence-based Healthcare & Comprehensive Pain Center, University Hospital and Medical Faculty Carl Gustav Carus, TU Dresden, Germany.
authors.forename: F
authors.initials: F
authors.lastname: Trautmann
authors.affiliation: Center for Evidence-based Healthcare & Comprehensive Pain Center, University Hospital and Medical Faculty Carl Gustav Carus, TU Dresden, Germany.
authors.forename: J
authors.initials: J
authors.lastname: Schmitt
authors.affiliation: Center for Evidence-based Healthcare & Comprehensive Pain Center, University Hospital and Medical Faculty Carl Gustav Carus, TU Dresden, Germany.
authors.forename: R
authors.initials: R
authors.lastname: Sabatowski