8Wirtz C R ,Tronnier V M. Modified Headholder and operating table for intra-operative MRI in neurosurgery[J]. Neurological Research, 1998,20 : 658-661.
9Wiro J N,Max A V. Medical image computing and computer- assisted intervention-MICCAI 2001 [M]. Berlin:Springer,2001: 429-436.
