TY - RPRT TI - Challenges in prognostic analysis. AU - J Concato PY - 2001 DO - 10.1002/1097-0142(20010415)91:8+<1607::aid-cncr1174>3.0.co;2-j UR - https://pubmed.ncbi.nlm.nih.gov/11309759/ ID - 11309759 ER -