Whether to determine HER2 status for breast cancer in the primary tumour or in the metastasis

1. Santiago, M.P.
2. Vázquez-Boquete, A.
3. Fernández, B.
4. Masa, C.
5. Antúnez, J.R.
6. Fraga, M.
7. Forteza, J.
8. García-Caballero, T.