“…Twenty-seven single-centre studies that included 5969 participants were conducted between 1976 and 2022. Four of these were randomised controlled trials, 4 , 5 , 26 , 40 four non-randomised intervention studies, 13 , 27 , 33 , 36 18 observational studies, 14 , 15 , 22 , 23 , 24 , 25 , 28 , 29 , 31 , 32 , 35 , 37 , 38 , 39 , 41 , 42 , 43 , 34 and one qualitative study 30 ( Table 1 ). The sample size ranged from 11 to 1018 participants.…”