Complex interventions for aggressive challenging behaviour in adults with intellectual disability: A rapid realist review informed by multiple populations. - Royston, Rachel; Naughton, Stephen; Hassiotis, Angela; Jahoda, Andrew; Ali, Afia; Chauhan, Umesh; Cooper, Sally-Ann; Kouroupa, Athanasia; Steed, Liz; Strydom, Andre; Taggart, Laurence; Rapaport, Penny (PLoS ONE, 2023)