title: Erratum to: Knowledge and perceptions of asthma in Zambia: a cross-sectional survey.
authors.affiliation: Pendleton Family Practice, P.O. Box 38049, Lusaka, Zambia. emiliajumbemarsden@gmail.com.
authors.forename: Emilia Jumbe
authors.initials: EJ
authors.lastname: Marsden
authors.affiliation: Department of Paediatrics and Child Health, University Teaching Hospital, School of Medicine, University of Zambia, Lusaka, Zambia.
authors.forename: Somwe Wa
authors.initials: SW
authors.lastname: Somwe
authors.affiliation: Department of Paediatrics and Child Health, University Teaching Hospital, School of Medicine, University of Zambia, Lusaka, Zambia.
authors.forename: Chishala
authors.initials: C
authors.lastname: Chabala
authors.affiliation: Instituto de Investigación Hospital Universitario de la Princesa (IISP), Universidad Autónoma de Madrid, Madrid, Spain.
authors.forename: Joan B
authors.initials: JB
authors.lastname: Soriano
authors.affiliation: Hospital Clinic, IDIBAPS, CIBERES, Universitat de Barcelona, Barcelona, Spain.
authors.forename: Cesar Picado
authors.initials: CP
authors.lastname: Vallès
authors.affiliation: Instituto de Investigación Hospital Universitario de la Princesa (IISP), Universidad Autónoma de Madrid, Madrid, Spain.
authors.forename: Julio
authors.initials: J
authors.lastname: Ancochea