Martin Beveridge John Fox David Milward Speech Interfaces for Point-of-Care Guideline Systems. 76-80 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=2780&spage=76 2003 conf/aime/2003 AIME db/conf/aime/aime2003.html#BeveridgeFM03