Bridging the age gap in breast cancer - analysis of the influence of age, comorbidity and frailty on the types of surgery performed in older women with operable breast cancer. Issue 2 (February 2020) - George, Jayan; Morgan, Jenna; Martin, Charlene; Shrestha, Anne; Sue, Ward; Holmes, Geoff; Bradburn, Mike; Burton, Maria; Chater, Tim; Pemberton, Kirsty; Nettleship, Anthony; Walters, Stephen; et al.