SPARC and neoplasm: In five studies which investigated SPARC both in the tumor and the stroma[24,25,27,31,32], one study only presented one result with the multivariate analysis in the stroma[24], one only presented one Kaplan-Meier curve of SPARC expression in the tumor[27] and another presented a Kaplan-Meier curve without differentiating in the stroma or in the tumor[32].