Acknowledgements
SML is funded by a Clinician Scientist fellowship from the National Institute for Health Research. EIB is supported by a Career Development Award from the Canadian Child Health Clinician Scientist Program. LS is supported by a Senior Clinical Fellowship from the Wellcome Trust.
Disclosure
LS has undertaken consultancy for GlaxoSmithKline. DM is on the executive of the EQUATOR Network, and is also an advisory board member of the International Congress on Peer Review and Biomedical Publication, is on the advisory and editorial board of several medical journals, and is the founding editor-in-chief of Systematic Reviews, an open access journal. The authors report no conflict of interest in this work.