TY  - GEN
AU  - Pollock,H C
TI  - Changing times
SN  - 0002-9416
PY  - 1967///0808
KW  - History, 20th Century
KW  - Humans
KW  - Journalism, Dental
KW  - history
KW  - Orthodontics
KW  - Publishing
N1  - Publication Type: Biography; Historical Article; Journal Article
UR  - https://doi.org/10.1016/0002-9416(67)90213-8
ER  -