Edward De Guzman F. Wai-ling Ho-Ching Tara Matthews Tye Rattenbury Maribeth Back Steve R. Harrison EEWWW!!: tangible interfaces for navigating into the human body. 806-807 2003 conf/chi/2003a CHI Extended Abstracts http://doi.acm.org/10.1145/765891.766003 db/conf/chi/chi2003a.html#GuzmanHMRBH03