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Comment Letter
Predicting Short-Term Outcome After Surgery for Primary Spinal Tumors Based on Patient Frailty; Methodologic Issues.
- Saeid Safiri, Hossein Safari, and Mostafa Qorbani.
- Managerial Epidemiology Research Center, Department of Public Health, School of Nursing and Midwifery, Maragheh University of Medical Sciences, Maragheh, Iran; Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.
- World Neurosurg. 2018 Feb 1; 110: 501.
no abstract available
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