Identification of E545k mutation in plasma from a PIK3CA wild-type metastatic breast cancer patient by array-based digital polymerase chain reaction: Circulating-free DNA a powerful tool for biomarker testing in advance disease

1. Romero, A.
2. Acosta-Eyzaguirre, D.
3. Sanz, J.
4. Moreno, F.
5. Serrano, G.
6. Diáz-Rubio, E.
7. Caldés, T.
8. Garcia-Saenz, J.Á.