[1] UNIV WASHINGTON, SCH MED, ORAL BIOL RES CTR, DEPT PATHOL, SEATTLE, WA 98195 USA
[2] UNIV WASHINGTON, SCH DENT, DEPT PERIODONT, SEATTLE, WA 98195 USA
[3] UNIV WASHINGTON, SCH DENT, DEPT DENT PUBL HLTH SCI, SEATTLE, WA 98195 USA
[4] UNIV TEXAS, SCH DENT, DEPT PERIODONT, SAN ANTONIO, TX 78284 USA
[5] BRISTOL MYERS SQUIBB PHARMACEUT RES INST, SEATTLE, WA 98121 USA