Hari, National Rehabilitation Center for Persons with Disabilities, Tokorozawa, Japan, 13.1.- 14.2.2004.
Heikkilä, University of Basel, Switzerland, 15.8.2004 31.3.2005.
Jousmäki, National Rehabilitation Center for Persons with Disabilities, Tokorozawa, Japan, 22.08.2004 - 05.09.2004 and 25.10.2004 24.11.2004.