Clinical use of a nonferromagnetic needle for magnetic resonance-guided biopsy. - Mueller,P.R.; Stark,D.D.; Simeone,J.F.; Saini,S.; Hahn,P.F.; Steiner,E.; Beaulieu,P.; Wittenberg,J.; Ferrucci,J.T. (Gastrointest Radiol, 1989)