1. INSERM U‐981 Gustave Roussy Villejuif France
2. Cell Biology Program Memorial Sloan‐Kettering Cancer Center New York NY USA
3. Programme “Cartes d'Identité des Tumeurs” Ligue Nationale Contre le Cancer Paris France
4. Pathology Department Gustave Roussy Villejuif France
5. Digestive Cancer Unit Gustave Roussy Villejuif France
6. Institute of Pathology University Medicine of Rostock Rostock Germany