While every effort has been made to ensure scientific accuracy, the SASA shall not be responsible or in any way liable for errors, omissions or inaccuracies in this publication, whether arising from negligence or otherwise or for any consequences arising therefrom. These guidelines are designed to provide a guide to the minimum standards considered best clinical care. However, every clinician retains responsibility for the care of the patient and must exercise independent clinical judgement. [ABSTRACT FROM AUTHOR]