Diagnostic tests 4: likelihood ratiosDeeks, Jonathan J senior research biostatisticianAltman, Douglas G professor of statistics in medicineAuthor information1 Screening and Test Evaluation Program, School of Public Health, University of Sydney, NSW 2006, Australia2 Cancer Research UK/NHS Centre for Statistics in Medicine, Institute for Health Sciences, Oxford OX3 7LFCorrespondence to: Mr Deeks [email protected]BMJ 329(7458):p 168-169, July 17, 2004.Copyright © 2004 BMJ Publishing Group Ltd