Fig. 1From: TNM-O: ontology support for staging of malignant tumoursN1b representational unit of TNM-O for colorectal tumours. Graph of the patho-anatomical structures represented by an N1b representational unit of the TNM-O for colorectal tumours version 7 (TNM-O_colorectal_7.owl). T and M representational units are unspecifiedBack to article page