1. Centre for Engineering in Medicine, Massachusetts General Hospital, Harvard Medical School and Shriners Hospitals for Children, Boston, Massachusetts; Bristol-Myers Squibb Pharmaceutical Institute, Department of Drug Metabolism and Pharmacokinetics, P.O. Box 4000, Princeton, New Jersey
2. Centre for Engineering in Medicine, Massachusetts General Hospital, Harvard Medical School and Shriners Hospitals for Children, Boston, Massachusetts; University of California, San Diego, 6605 Engineering Building 1, 95 Gilman Drive, La Jolla, CA 9293-412
3. Centre for Engineering in Medicine, Massachusetts General Hospital, Harvard Medical School and Shriners Hospitals for Children, Boston, Massachusetts
4. Organogenesis, Canton, Massachusetts