Lypka Michael, Yen Stephen, Urata Mark, Hammoudeh Jeffrey
Division of Plastic and Maxillofacial Surgery, Children's Hospital Los Angeles-University of Southern California, Los Angeles, CA, USA.
J Oral Maxillofac Surg. 2012 Jul;70(7):e428-30. doi: 10.1016/j.joms.2012.03.013.
