2009 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, Minneapolis, MN, USA. IEEE: 942-945; ISBN 978-1-4244-3296-7
2008,
Nagaoka T, Saito K, Takahashi M, Ito K, Watanabe S
2008 30th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, Vancouver, BC, Canada. IEEE: 2817-2820; ISBN 978-1-4244-1814-5
2006,
Nagaoka T, Togashi T, Saito K, Takahashi M, Ito K, Ueda T, Osada H, Ito H, Watanabe S