K‐ras mutations (codon 12) are not involved in down‐regulation of mhc class‐i genes in colon carcinomas

1. Oliva, M.R.
2. Cabrera, T.
3. Esquivias, J.
4. Perez‐Ayala, M.
5. Redondo, M.
6. Ruiz‐Cabello, F.
7. Garrido, F.