Low-grade metastases in high-grade clear cell renal cell carcinomas A clinicopathologic study of 4 cases with an insight into the role of mesenchymal-to-epithelial transition process

1. López, J.I.
2. Mosteiro, L.
3. Guarch, R.
4. Larrinaga, G.
5. Pulido, R.
6. Angulo, J.C.