1. A posteroanterior cephalometric evaluation of craniofacial asymmetry;Letzer;Angle Orthod,1967
2. Asymmetry of the human facial skeleton;Vig;Angle Orthod,1975
3. An assessment of asymmetry in the normal craniofacial complex;Shah;Angle Orthod,1978
4. Skeletal asymmetry in esthetically pleasing faces;Peck;Angle Orthod,1991
5. Some asymmetries of the dental arches, jaws, and skull, and their etiological significance;Lundstrom;Am J Orthod,1961