[1] Kyushu Univ, Fac Med, Dept Internal Med 1, Fukuoka 812, Japan
[2] Ehime Univ, Sch Med, Dept Internal Med 1, Shigenobu, Ehime 79102, Japan
[3] Ehime Univ, Sch Med, Dept Dermatol, Shigenobu, Ehime 79102, Japan
[4] Univ Florida, Hlth Sci Ctr, Dept Pediat, Div Genet, Gainesville, FL 32610 USA