[1] MATSUMOTO DENT COLL,INST DENT SCI,LAB ORAL STRUCT & FUNCT,NAGANO 39907,JAPAN
[2] MATSUMOTO DENT COLL,DEPT PERIODONTOL,NAGANO 39907,JAPAN
[3] NIDDK,OFF TECHNOL DEV,NIH,BETHESDA,MD 20892
[4] MATSUMOTO DENT COLL,DEPT ORAL & MAXILLOFACIAL SURG 1,NAGANO 39907,JAPAN
[5] FUJITA HLTH UNIV,SCH MED,DEPT ANAT,AICHI 47011,JAPAN