3Joffe JM,McDermontt PJ,l.inney AD, et al. Computer generated titanium cranioplasy: report of new technique for repairing skull defects[J]. Br Neuosurg,1992,6:342-344.
4Rawlings Ⅲ CE. Evaluation in cats of a new materi-al for cranioplasty:a composite of plaster of paris and hy droxylapatite [J]. J Neurosurg,1998,69:269 271.