by Lewis, Ryan L., Moore, Jon M., Kline, A.Letch
Published in Current surgery (2002)

by Lewis, L.R., Ross, I.M., Qi Gong
Published in 2007 46th IEEE Conference on Decision and Control (2007)

by Lewis, Ryan L, Roller, Michael D, Parra, Brett L, Cotlar, Alvin M
Published in Current surgery (01.09.2000)

by Lewis, Ryan L, Peyton, Brian D
Published in Current Surgery (01.05.2002)