1. Department of Pediatrics, University of Tennessee Health Science Center, Memphis, Tennessee
2. SunTech Medical, Inc., Morrisville, North Carolina
3. Division of Intramural Research, National Heart Lung and Blood Institute, Bethesda, Maryland
4. Independent Consultant, Big Canoe, Georgia, USA
5. CNSystems Medizintechnik GmbH, Graz, Austria
6. Philips, Salem, New Hampshire, USA