[1] MED SCI SYST INC,SAN ANTONIO,TX
[2] UNIV WASHINGTON,SCH MED,DEPT PATHOL,SEATTLE,WA 98195
[3] UNIV WASHINGTON,SCH MED,DEPT PERIODONT,SEATTLE,WA 98195
[4] UNIV WASHINGTON,SCH DENT,DEPT PERIODONT,SEATTLE,WA 98195
[5] UNIV WASHINGTON,SCH DENT,DEPT PATHOL,SEATTLE,WA 98195
[6] UNIV BERN,SCH DENT MED,BERN,SWITZERLAND