title: Erratum to: A systematic review of the characteristics and validity of monitoring technologies to assess Parkinson's disease.
authors.affiliation: Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Avenida Professor Egas Moniz, Lisboa, 1649-028, Portugal.|Instituto Superior de Ciências da Saúde Egas Moniz, Center for Interdisciplinary Research Egas Moniz (CiiEM), Monte de Caparica, Portugal.|CNS-Campus Neurológico Sénior, Torres Vedras, Portugal.
authors.forename: Catarina
authors.initials: C
authors.lastname: Godinho
authors.affiliation: Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Avenida Professor Egas Moniz, Lisboa, 1649-028, Portugal.|CNS-Campus Neurológico Sénior, Torres Vedras, Portugal.
authors.forename: Josefa
authors.initials: J
authors.lastname: Domingos
authors.affiliation: Laboratory of Clinical Pharmacology and Therapeutics, Faculty of Medicine, University of Lisbon, Lisbon, Portugal.
authors.forename: Guilherme
authors.initials: G
authors.lastname: Cunha
authors.affiliation: Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Avenida Professor Egas Moniz, Lisboa, 1649-028, Portugal.
authors.forename: Ana T
authors.initials: AT
authors.lastname: Santos
authors.affiliation: Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Avenida Professor Egas Moniz, Lisboa, 1649-028, Portugal.|Laboratory of Clinical Pharmacology and Therapeutics, Faculty of Medicine, University of Lisbon, Lisbon, Portugal.
authors.forename: Ricardo M
authors.initials: RM
authors.lastname: Fernandes
authors.affiliation: Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Avenida Professor Egas Moniz, Lisboa, 1649-028, Portugal.
authors.forename: Daisy
authors.initials: D
authors.lastname: Abreu
authors.affiliation: Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Avenida Professor Egas Moniz, Lisboa, 1649-028, Portugal.
authors.forename: Nilza
authors.initials: N
authors.lastname: Gonçalves
authors.affiliation: The Cure Parkinson's Trust, London, UK.
authors.forename: Helen
authors.initials: H
authors.lastname: Matthews
authors.affiliation: The Cure Parkinson's Trust, London, UK.
authors.forename: Tom
authors.initials: T
authors.lastname: Isaacs
authors.affiliation: The Cure Parkinson's Trust, London, UK.
authors.forename: Joy
authors.initials: J
authors.lastname: Duffen
authors.affiliation: HSG-IMIT, Villingen-Schwenningen, Germany.
authors.forename: Ahmed
authors.initials: A
authors.lastname: Al-Jawad
authors.affiliation: Norwegian Centre for Telemedicine, Tromso, Norway.
authors.forename: Frank
authors.initials: F
authors.lastname: Larsen
authors.affiliation: Norwegian Centre for Telemedicine, Tromso, Norway.
authors.forename: Artur
authors.initials: A
authors.lastname: Serrano
authors.affiliation: Hasomed GmbH, Magdeburg, Germany.
authors.forename: Peter
authors.initials: P
authors.lastname: Weber
authors.affiliation: Hasomed GmbH, Magdeburg, Germany.
authors.forename: Andrea
authors.initials: A
authors.lastname: Thoms
authors.affiliation: AbilityNet, London, UK.
authors.forename: Stefan
authors.initials: S
authors.lastname: Sollinger
authors.affiliation: Institute for Medical Genetics and Applied Genomics, University of Tuebingen, Tuebingen, Germany.
authors.forename: Holm
authors.initials: H
authors.lastname: Graessner
authors.affiliation: Department of Neurodegeneration, Hertie Institute for Clinical Brain Research, Center of Neurology, University of Tuebingen, Tuebingen, Germany.
authors.forename: Walter
authors.initials: W
authors.lastname: Maetzler
authors.affiliation: Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Avenida Professor Egas Moniz, Lisboa, 1649-028, Portugal. joaquimjferreira@gmail.com.|Laboratory of Clinical Pharmacology and Therapeutics, Faculty of Medicine, University of Lisbon, Lisbon, Portugal. joaquimjferreira@gmail.com.|CNS-Campus Neurológico Sénior, Torres Vedras, Portugal. joaquimjferreira@gmail.com.
authors.forename: Joaquim J
authors.initials: JJ
authors.lastname: Ferreira