[1] Univ Washington, Hlth Sci Ctr, Dept Periodont, Seattle, WA 98195 USA
[2] Univ Washington, Dept Psychiat & Behav Sci, Seattle, WA 98195 USA
[3] Immunex Corp, Seattle, WA 98101 USA
[4] Bristol Myers Squibb Pharmaceut Res Inst, Princeton, NJ 08543 USA