[1] Buddhist Tzu Chi Med Fdn, Taipei Tzu Chi Hosp, Dept Dermatol, New Taipei 231, Taiwan
[2] Tzu Chi Univ, Sch Med, Hualien 970, Taiwan
[3] Minist Sci & Technol, Dept Life Sci, Taipei 106, Taiwan
[4] Buddhist Tzu Chi Med Fdn, Taipei Tzu Chi Hosp, Dept Internal Med, New Taipei 231, Taiwan
[5] Buddhist Tzu Chi Med Fdn, Taipei Tzu Chi Hosp, Dept Res, New Taipei 231, Taiwan