[1] MacKay Mem Hosp, Dept Med Res, Taipei 10449, Taiwan
[2] Natl Yang Ming Univ, Dept Stomatol Med Educ & Res, Vet Gen Hosp, Inst Oral Biol,Sch Dent, Taipei 11217, Taiwan
[3] Natl Yang Ming Univ, Sch Dent, Inst Oral Biol, Dept Oral & Maxillofacial Surg,Taipei MacKay Mem, Taipei 10449, Taiwan