Quantitative imaging study of extent of surgical resection and prognosis of malignant astrocytomas. - Kowalczuk,A.; Macdonald,R.L.; Amidei,C.; Dohrmann 3rd,G.; Erickson,R.K.; Hekmatpanah,J.; Krauss,S.; Krishnasamy,S.; Masters,G.; Mullan,S.F.; Mundt,A.J.; Sweeney,P.; et al. (Neurosurgery, 1997)