HD 14/9/17. --
Non in Sherpa. Copyright info from journal website: All articles published in the Singapore Medical Journal (SMJ) are protected by copyright. No material in this journal may be reproduced on any platform including electronic or in print, or transmitted by any means, in whole or in part, without the prior written permission of the Editor of the SMJ. Written permission must also be obtained before any part of the SMJ is stored in any retrieval system of any nature., 16.10.17-MMM Removed doi not working, LL 8/5/19