Manipulating 3D Anatomic Models in Augmented Reality: Comparing a Hands-Free Approach and a Manual Approach. - Shirin Sadri; Shalva Kohen; Carmine Elvezio; Shawn Sun; Alon Grinshpoon; Gabrielle J. Loeb; Naomi Basu; Steven Feiner (ISMAR, 2019)