1. T. Yamatsuji, T. Matsui, T. Okamoto, K. Komatsuzaki, S. Takeda, U. Giambarella, I. Nishimoto, Cardiovascular Research Center, Massachusetts General Hospital, Department of Medicine, Harvard Medical School, Charlestown, MA 02129, USA.
2. H. Fukumoto and T. Iwatsubo, Department of Neuropathology and Neuroscience, Faculty of Pharmaceutical Sciences, University of Tokyo, Bunkyo-ku, Tokyo 113, Japan.
3. N. Suzuki and A. Asami-Odaka, Takeda Chemical Industries Ltd., Tsukuba, Ibaraki 300-42, Japan.
4. S. Ireland, Oncor, Gaithersburg, MD 20877, USA.
5. T. B. Kinane, Renal Unit, Massachusetts General Hospital, Department of Pediatrics, Harvard Medical School, Charlestown, MA 02129, USA.