title: [Reply to Åke Thörn concerning ethics and population studies: Voluntary consents must be respected].
authors.forename: Peter M
authors.initials: PM
authors.lastname: Nilsson
authors.forename: Nancy
authors.initials: N
authors.lastname: Pedersen
authors.forename: Lars
authors.initials: L
authors.lastname: Lind
authors.forename: Sölve
authors.initials: S
authors.lastname: Elmståhl
mesh_terms: D026724:Ethical Review; D032984:Ethics, Research; D006801:Humans