[History of orthodontics: education, publications, professional organizations in the first half of the XX century].
Persin
L S
LS
Alimova
M Ia
MIa
D049673:History, 20th Century; D009970:Orthodontics / Q000193:education / Q000266:history* / Q000458:organization & administration; D011642:Publications / Q000266:history*; D012425:Russia (Pre-1917); D012575:Schools, Dental / Q000266:history* / Q000458:organization & administration; D012953:Societies, Dental / Q000266:history* / Q000458:organization & administration; D014586:USSR