1. Class II combination therapy;Bowman;J Clin Orthod,1998
2. The pendulum appliance for Class 11 noncompliance therapy;Hilgers;J Clin Orthod,1992
3. Cooperation of adolescents in orthodontic treatment;Albino;J Behav Med,1991
4. Orthodontic cooperation;El-Mangoury;Am J Orthod,1981
5. Sinha PK. Unpublished data.