TY - JOUR T1 - Survival analysis part II: multivariate data analysis--an introduction to concepts and methods. JO - Br J Cancer PY - 2003/07/29 AU - Bradburn MJ AU - Clark TG AU - Love SB AU - Altman DG ED - DO - DOI: 10.1038/sj.bjc.6601119 VL - 89 IS - 3 SP - 431 EP - 436 Y2 - 2025/11/04 ER -