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Grading and staging *.
| Intestinal type (%) | Diffuse type (%) | Mixed type (%) | |
|---|---|---|---|
| G1 | 0 | 0 | 0 |
| G2 | 9 | 0 | 1 |
| G3 | 13 | 6 | 5 |
| Stage I | 3 | 0 | 2 |
| Stage II | 6 | 0 | 1 |
| Stage III | 5 | 2 | 1 |
| Stage IV | 8 | 4 | 2 |
Stage given by examination of surgical specimens according to the TNM Classification of Malignant Tumours 6th ed. [36]. Because of the small number of patients in each group, a further sub-classification of stage I in stage IA and IB as well as of stage III in stage IIIA and IIIB is not reported.
