Bariatric surgery increases the risk of major osteoporotic fracture: a self-controlled case series patients from the CPRD GOLD database linked to HES - Robinson, DE; Douglas, I; Tan, GD; Cooper, C; Delmestri, A; Javaid, MK; Judge, A; Strauss, VY; Prieto-Alhambra, D (Wiley, 2019)