[1] KOBE UNIV,SCH MED,DEPT PUBL HLTH,KOBE 650,JAPAN
[2] OSAKA MED COLL,TAKATSUKI,OSAKA 569,JAPAN
[3] YAMAGUCHI UNIV,SCH MED,DEPT PATHOL,UBE,YAMAGUCHI 755,JAPAN
[4] KOBE UNIV,SCH MED,DEPT INTERNAL MED,KOBE 650,JAPAN
[5] OSAKA PREFECTURAL CTR ADULT DIS,DEPT INTERNAL MED,OSAKA,JAPAN
[6] KOBE KYOTO HOSP,DEPT INTERNAL MED,KOBE,JAPAN