JCO retirement survey.
Gottlieb
E L
EL
Nelson
A H
AH
Vogels
D S
DS
D000368:Aged; D003815:Dentists; D005260:Female; D006801:Humans; D008297:Male; D009970:Orthodontics; D010415:Pensions; D012179:Retirement; D014481:United States