“…The patient populations involved in the studies varied and included adult cancer patients (24,29,(33)(34)(35), adult surgical patients (32,(36)(37)(38), adult patients with mixed diagnosis (31,40), adult patients with mixed diagnosis (39), and one trial was conducted in a pediatric hospital (30). The settings also varied and included hospitals (30)(31)(32)(35)(36)(37)(38)(39), clinics (29), home care (33,34), and communities (including various settings) (24,40). The trials were conducted in numerous countries, including the USA (24,29,33,34,39), Canada (30), China (31), Greece (35) the Netherlands (36)(37)(38), France (32) and Sweden (40).…”