Change--the only constant.
Turpin
D L
DL
D000375:Aging / Q000473:pathology; D003724:Dental Arch / Q000033:anatomy & histology; D006801:Humans; D007091:Image Processing, Computer-Assisted; D009970:Orthodontics / Q000639:trends*; D014070:Tooth / Q000033:anatomy & histology; D014741:Video Recording