Open Access. The published version of this work has been reproduced with the permission of Morgan Liotta, Production Coordinator, Publications, The Royal Australian College of General Practitioners.
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This article may be downloaded for personal use only. Text and images are the copyright of Australian Family Physician. Permission to reproduce must be sought from the publisher, The Royal Australian College of General Practitioners. This work was published in Australian Family Physician, 29(1): 31-34, 2000. More information about this publisher may be found at http://www.racgp.org.au/
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Copyright (2000) The Royal Australian College of General Practitioners.