1. University Hospital Medical Information Network (UMIN), Japan, http://square.umin.u-tokyo.ac.jp/enkaku/96/Enkaku-RepSoukatu-nof-eng.htm.
2. University of Athens, School of Medicine, Athens, Greece: http://users.forthnet.gr/ath/giovas/telemed.
3. Virginia Commonwealth University School of Medicine, Richmond, VA, USA, http://www.cbil.vcu.edu/telemed.
4. Frost & Sullivan: European Telemedicine Market, 1998.