Mr. Dewberry is a private investor. He has served as a director of
the Company since the completion of the merger between the Company
and Healthdyne Technologies, Inc. (“Healthdyne”) on February
11, 1998. From March 1992 until March 1996, Mr. Dewberry was Vice Chairman
of Healthdyne, Inc. From 1984 to 1992, Mr. Dewberry served as President
and Chief Operating Officer, and Executive Vice President of Healthdyne,
Inc.