“…The sample size varied between seven and 30 participants. In most of the articles, the authors discuss or mention the implications of a small sample size as a limitation for the research results (Bjørkedal et al, 2016; Blixen et al, 2016; Burke et al, 2016; de Jager et al, 2016; Jones et al, 2016; Landon, Shepherd, McGarry, Theadom, & Miller, 2016; Rhodes, Parrett, & Mason, 2016; Topor, Ljungqvist, & Strandberg, 2016), whereas other authors do not discuss this issue, even if fewer than 10 participants were interviewed (Singh et al, 2016; van Langen et al, 2016). …”