title: Reply.
authors.affiliation: Department of Clinical Neuroscience, Karolinska Institute, Stockholm, Sweden.
authors.forename: Peter
authors.identifier: 0000-0002-4710-6326
authors.initials: P
authors.lastname: Alping
authors.affiliation: Department of Medicine Solna, Karolinska Institute, Stockholm, Sweden.
authors.forename: Thomas
authors.initials: T
authors.lastname: Frisell
authors.affiliation: Department of Clinical Sciences, Danderyd Hospital, Karolinska Institute, Stockholm, Sweden.
authors.forename: Anders
authors.initials: A
authors.lastname: Svenningsson
authors.affiliation: Department of Clinical Neuroscience, Karolinska Institute, Stockholm, Sweden.
authors.forename: Fredrik
authors.initials: F
authors.lastname: Piehl