R. Lal

Frailty assessment in older urological patients prior to surgery: a systematic review and narrative synthesis

J. Dhesi, R. Nair, J. Partridge, 2020, Therapeutic advances in urology.

Age and frailty are independently associated with increased COVID-19 mortality and increased care needs in survivors: results of an international multi-centre study.

Thomas A. Jackson, C. Steves, G. Sammarco, 2021, Age and ageing.