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Soong, John T Y., Jurgita Gammall, Danny Liew, Carol Jane Peden, Alex Bottle, Derek Bell, Carolyn Cooper, and Adrian Hopper. "Dr Foster Global Frailty Score: An International Retrospective Observational Study Developing and Validating a Risk Prediction Model for Hospitalised Older Persons From Administrative Data Sets." BMJ Open 2019.

Soong, John T Y., et al. "Dr Foster Global Frailty Score: An International Retrospective Observational Study Developing and Validating a Risk Prediction Model for Hospitalised Older Persons From Administrative Data Sets." BMJ Open 2019.