“…Hence, we assessed for eligibility 33 fulltext articles, and of those, we included nine. We excluded eight articles due to the absence of clinical data (Barber et al, 2020;Blessing et al, 2020;Schellekens et al, 2016) or redundant information (Alper et al, 2000;Calvey et al, 2020;Davis et al, 2018;Lotsof & Alexander, 2001;Mash, 2018). One record had not been published (Bastiaans, 2004).…”