About the Authors
International Union Against Tuberculosis and Lung Disease, Child Lung Health Division, Paris, France
Department of Paediatrics and Child Health, Faculty of Health Sciences, Stellenbosch University, Tygerberg, South Africa
Kamuzu Central Hospital, Department of Paediatrics, Lilongwe, Malawi
The authors have declared that no competing interests exist.
ICMJE criteria for authorship read and met: PME RG DAE CM. Wrote the first draft of the paper: PME. Contributed to the writing of the paper: PME RG DAE CM.