Validation of the FIRST simplified frailty scale using the ECOG performance status instead of patient-reported activities.
Claudia A M StegeBronno van der HoltAvinash G DinmohamedPieter SonneveldMark-David LevinNiels W C J van de DonkUlf-Henrik MellqvistAnders WaageSonja ZweegmanPublished in: Leukemia (2020)
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