(2019-07-01) Oksel, Ceyda; Granell, Raquel; Haider, Sadia; Fontanella, Sara; Simpson, Angela; Turner, Steve; Devereux, Graham; Arshad, Syed Hasan; Murray, Clare S.; Roberts, Graham; Holloway, John W.; Cullinan, Paul; Henderson, John; Custovic, Adnan; University of Aberdeen.Other Applied Health Sciences; University of Aberdeen.Grampian Data Safe Haven (DaSH); University of Aberdeen.Farr Aberdeen; University of Aberdeen.Institute of Applied Health Sciences