title: Rejoinder to Karen Lutfey Spencer.
authors.affiliation: Philosophy Department, LMU Munich, Germany and Institute for Biomedical Ethics and History of Medicine, University of Zurich, Switzerland. Electronic address: v.wild@lrz.uni-muenchen.de.
authors.forename: Verina
authors.initials: V
authors.lastname: Wild
authors.affiliation: University of Zurich, Switzerland.
authors.forename: Daniel
authors.initials: D
authors.lastname: Drewniak
authors.affiliation: University of Bielefeld, Germany.
authors.forename: Carsten
authors.initials: C
authors.lastname: Sauer
authors.affiliation: University of Zurich, Switzerland.
authors.forename: Tanja
authors.initials: T
authors.lastname: Krones
keywords: Factorial survey; Health care professionals; Immigrants; Residence status