1. J. S. Stamler, Department of Medicine, Divisions of Respiratory and Cardiovascular Medicine and Department of Cell Biology, Duke University Medical Center, Room 321 MSRB, Box 2612, Durham, NC 27710, USA.
2. L. Jia, J. P. Eu, T. J. McMahon, I. T. Demchenko, C. A. Piantadosi, Department of Medicine, Division of Respiratory Medicine, Duke University Medical Center, Durham, NC 27710, USA.
3. J. Bonaventura, Department of Cell Biology and Nicholas School of the Environment, Duke University Medical Center, Durham, NC 27710, USA.
4. K. Gernert, Department of Biochemistry, Duke University Medical Center, Durham, NC 27710, USA.