[1] Seattle Sci Fdn, 550 17th Ave,James Tower,Suite 600, Seattle, WA 98122 USA
[2] Kurume Univ, Dent & Oral Med Ctr, Sch Med, Kurume, Fukuoka, Japan
[3] Kurume Univ, Dept Anat, Div Gross & Clin Anat, Sch Med, Kurume, Fukuoka, Japan
[4] St Georges Univ, Dept Anat Sci, St Georges, Grenada