Slot M, Koelink M H, Scholten F G, de Mul F F, Weijers A L, Greve J, Graaff R, Dassel A C, Aarnoudse J G, Tuynman F H
University of Twente, Department of Applied Physics, Enschede, The Netherlands.
Med Biol Eng Comput. 1992 Jul;30(4):441-6. doi: 10.1007/BF02446183.