“…For examples of studies which have used this design with single cases see Parsons, Law, and Gascoigne (2005), for group studies which have combined a range of targets see Mecrow, Beckwith, and Klee (2010) and Ebbels et al (in press) and for studies with counter-balancing of targets and controls across participants see Wilson, Aldersley, Dobson, Edgar, Harding, Luckins et al (2015).…”