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Heart Rate Variability (HRV) to Evaluate Surgical Risk on Patients on Beta Blockers

This study has been withdrawn prior to enrollment.
(no patients were enrolled. Study was closed prior to study start.)
Sponsor:
ClinicalTrials.gov Identifier:
NCT01330654
First Posted: April 7, 2011
Last Update Posted: June 27, 2012
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
Information provided by:
University of California, San Francisco
No Study Results Posted on ClinicalTrials.gov for this Study
Study was withdrawn before participants were enrolled.
  Study Status: This study has been withdrawn prior to enrollment.
  Study Completion Date: March 2012
  Primary Completion Date: March 2012 (Final data collection date for primary outcome measure)