1. Evidence-based orthodontics: friend, not foe;Collett;Am J Orthod Dentofacial Orthop,2007
2. Hamilton DC. Early treatment. Tape 32 B. AAO National Meeting; Philadelphia, PA; May 6, 2002.
3. Differential diagnosis of Class II malocclusions;Moyers;Am J Orthod,1980
4. Hayes JL. Letter to the editor. Middle Atlantic Society of Orthodontists Journal Autumn 2005;11.