1. Fear and loathing in orthodontics;Johnston,1990
2. Growth modification;Carlson,1999
3. Moyers RE: Orthodontics: unresolved problems and future perspec-tives, in Carlson DS (ed): Craniofacial growth theory and orthodontic treatment, in Carlson DS (ed): Craniofacial Growth Series, Vol 23. Center for Human Growth and Development. Ann Arbor, MI, Univer-sity of Michigan, 1990, pp 207-232
4. Evolution of concepts of the face;Moyers,1993