Proceedings of the 25th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (IEEE Cat. No.03CH37439), Cancun, Mexico. IEEE: pp. 3257-3260; ISBN 978-0-7803-7789-9
2003,
Oltman CL, Clark CB, Kane NL, Zhang Y, Gutterman DD, Dellsperger KC, Kerber RE