Tuesday, October 14, 2008 - 12:44AM EST

United States

Oregon

Name of AuthorInstitutional Affiliation
Fu ROregon Evidence-based Practice Center, Oregon Health & Science University, Portland, OR, U.S.A.
Lewis SNorthwest Cardiovascular Institute, Portland, OR 97210, USA. sandral@nw-ci.com
Nelson HDOregon Evidence-based Practice Center, Oregon Health & Science University, Portland, OR, U.S.A.