MKI67 and breast cancer: Figure 1, sections j and k demonstrate low grading tumor and high grading tumor (according to Nottingham scale) with low and high percentage of Ki-67 positive cells respectively.For Kaplan-Meier analyses of survival of patients with breast cancer, samples were divided into two groups representing the subcellular status of maspin - cytoplasmic or nuclear - and the level of protein in particular fractions: low level or lack of protein and moderate and high level of protein (Figure 2a,b).