About the Authors

Jasper V. Been

jasper.been@mumc.nl

Affiliations Department of Paediatrics, Maastricht University Medical Centre, Maastricht, Netherlands, School for Public Health and Primary Care (CAPHRI), Maastricht University, Maastricht, Netherlands, Allergy and Respiratory Research Group, Centre for Population Health Sciences, The University of Edinburgh, Edinburgh, United Kingdom

Marlies J. Lugtenberg

Affiliation Department of Paediatrics, Maastricht University Medical Centre, Maastricht, Netherlands

Eline Smets

Affiliation Department of Paediatrics, Maastricht University Medical Centre, Maastricht, Netherlands

Constant P. van Schayck

Affiliations School for Public Health and Primary Care (CAPHRI), Maastricht University, Maastricht, Netherlands, Allergy and Respiratory Research Group, Centre for Population Health Sciences, The University of Edinburgh, Edinburgh, United Kingdom

Boris W. Kramer

Affiliations Department of Paediatrics, Maastricht University Medical Centre, Maastricht, Netherlands, School for Oncology and Developmental Biology (GROW), Maastricht University Medical Centre, Maastricht, Netherlands, School of Mental Health and Neuroscience (MHeNS), Maastricht University Medical Centre, Maastricht, Netherlands

Monique Mommers

Affiliation School for Public Health and Primary Care (CAPHRI), Maastricht University, Maastricht, Netherlands

Aziz Sheikh

Affiliations School for Public Health and Primary Care (CAPHRI), Maastricht University, Maastricht, Netherlands, Allergy and Respiratory Research Group, Centre for Population Health Sciences, The University of Edinburgh, Edinburgh, United Kingdom, Harkness Fellow in Health Care Policy and Practice, Division of General Internal Medicine and Primary Care, Brigham and Women's Hospital/Harvard Medical School, Boston, Massachusetts, United States of America

Competing Interests

AS is a member of the Editorial Board of PLOS Medicine. The authors have declared that no other competing interests exist.

Author Contributions

Conceived and designed the experiments: JVB BWK MM AS. Performed the experiments: JVB MJL ES. Analyzed the data: JVB MJL. Wrote the first draft of the manuscript: JVB MJL AS. Contributed to the writing of the manuscript: JVB MJL ES BWK CPvS MM AS. ICMJE criteria for authorship read and met: JVB MJL ES CPvS BWK MM AS. Agree with manuscript results and conclusions: JVB MJL ES CPvS BWK MM AS. Secured funding: JVB CPvS. Systematic literature review: JVB MJL ES. Quality assessment: JVB MJL ES. Data-extraction: JVB MJL.