Photochemical & Photobiological Sciences : Official Journal of the European Photochemistry Association and the European Society for Photobiology|February 4, 2010
American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics|January 6, 2009
Photochemical & Photobiological Sciences : Official Journal of the European Photochemistry Association and the European Society for Photobiology|February 4, 2010
American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics|January 6, 2009