Microsarellite alterations and TP53 mutations in plasma DNA of small cell lung cancer patients: Follow-up and prognostic significance - Gonzalez, R; Silva, JM; Dominguez, G; Garcia, JM; Chen, XQ; Stroun, M; Provencio, M; Espana, P; Anker, P; Bonilla, F (Annals Of Oncology, 2000)