Validation of the 2001 St Gallen risk categories for node-negative breast cancer using a database from the Spanish Breast Cancer Research Group (GEICAM) [1]

1. Colomer, R.
2. Viñas, G.
3. Beltran, M.
4. Izquierdo, A.
5. Lluch, A.
6. Llombart-Cussac, A.
7. Alba, E.
8. Munárriz, B.
9. Martín, M.
10. Cox, M.C.
11. Figg, W.D.
12. Thurman, P.W.