[1] Indiana Univ, Sch Med, Indianapolis, IN USA
[2] Chang Gung Univ, Chang Gung Mem Hosp, Coll Med, Kaohsiung Med Ctr, Kaohsiung, Taiwan
[3] Case Western Reserve Univ, Cleveland, OH 44106 USA
[4] Singapore Gen Hosp, Singapore 0316, Singapore
[5] Univ Cordoba, Cordoba, Spain
[6] Polytech Univ Marche Reg, United Hosp, Sch Med, Ancona, Italy