Heiden-Van der Loo, M. van der

cancer hospital margin patient breast margin status tumor case mix correction breast cancer surgery status breast cancer patients percentage netherland signi ficant treatment target dutch correction limit quality result agreement fi rst bcs fi rst surgery factor indicator signi information value number breast-conserving ficant proportion registry variation netherlands cancer registry risk factors quality indicator study carcinoma 10 hospitals characteristic target value guideline table ductal surgeon breast-conserving surgery breast cancer care classi multifocality 0.0 breast cancer res case mix adjustment classi fication hnscc analyses case mix inked surface re-excision finition utero resection level fication nodal multivariate difference ductal carcinoma classi fied cox -2 expression 1.0 histological subtype surface hospital level health cox -2 oncol tumor size