Development and external validation of predictive algorithms for six-week mortality in spinal metastasis using 4,304 patients from five institutions

Aditya V. Karhade, Brian P. Fenn, Olivier Q. Groot, Akash Shah, Hung‐Kuan Yen, Mark H. Bilsky, Ming‐Hsiao Hu, Ilya Laufer, Don Y. Park, Daniel M. Sciubba, Ewout W. Steyerberg, Daniel G. Tobert, Christopher M. Bono, Mitchel B. Harris, Joseph H. Schwab