The full article is accessible to AMA members and paid subscribers. Login to read more or purchase a subscription now.
Please note: institutional and Research4Life access to the MJA is now provided through Wiley Online Library.
- Ian R Reid
- Mark J Bolland
- University of Auckland, Auckland, New Zealand
Correspondence: i.reid@auckland.ac.nz
Acknowledgements:
Ian Reid and Mark Bolland are supported by grants from the Health Research Council of New Zealand. The Health Research Council of New Zealand had no role in the study design, data collection, analysis or interpretation, reporting or publication.
Competing interests:
No relevant disclosures.
Online responses are no longer available. Please refer to our instructions for authors page for more information.
Summary