This study has been completed.
First Posted: May 26, 2000
Last Update Posted: March 17, 2014
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.
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National Heart, Lung, and Blood Institute (NHLBI)
Information provided by (Responsible Party):
Bernard Rosner, Brigham and Women's Hospital