Polyacrylamide phantom for self-actuating needle–tissue interaction studies. - Datla, Naresh V.; Konh, Bardia; Koo, Joe J.Y.; Choi, Daniel J.W.; Yu, Yan; Dicker, Adam P.; Podder, Tarun K.; Darvish, Kurosh; Hutapea, Parsaoran (Medical Engineering & Physics, 2014)