[1] Shiraz Univ Med Sci, Hlth Human Resources Res Ctr, Sch Management & Med Informat, Ghasrdasht St, Shiraz, Iran
[2] Univ Adelaide, Australian Res Ctr Populat Oral Hlth ARCPOH, Adelaide Dent Sch, Adelaide, SA, Australia
[3] Univ Adelaide, Fac Hlth & Med Sci, Adelaide Dent Sch, Adelaide, SA, Australia
[4] Natl Dent Res Inst, 5 Second Hosp Ave, Singapore 168938, Singapore