TY  - BOOK
AU  - Harvold,Egil P.
TI  - The activator in interceptive orthodontics
SN  - 0801620945
AV  - MED.RK521 .H35
PY  - 1974///
CY  - Saint Louis
PB  - C. V. Mosby Co.
KW  - Orthodontics, Interceptive
KW  - Orthodontics, Preventive
ER  -