The Cochrane Library 2005, issue 4: (dates indicate the original date of publication, or most recent update).
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Senior Clinical Research Project Manager, Back Group Coordinator, Institute for Work & Health, 481 University Avenue, Suite 800, Toronto, ON M5G 2E9, phone: (416) 927-2027 ext 2158, fax: (416) 927-4167, web site: www.cochrane.iwh.on.ca , web site: www.iwh.on.ca.