TY - GEN AU - Molina,R AU - Filella,X AU - Ballesta,A M TI - [Tumor markers: theory or reality?] SN - 0025-7753 PY - 1994///0412 KW - Biomarkers, Tumor KW - blood KW - Humans KW - Neoplasms KW - Predictive Value of Tests KW - Prognosis KW - Sensitivity and Specificity N1 - Publication Type: Clinical Conference; Journal Article ER -