Figure 1.

BETS-3 model structure. As shown, there are 5 first-degree associates of 3-month survival: surgeon’s estimate of survival, preoperative hemoglobin concentration, preoperative absolute lymphocyte count, ECOG performance status, and presence of a complete pathologic fracture.

Forsberg et al. BMC Cancer 2012 12:493   doi:10.1186/1471-2407-12-493
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