“…Thirteen studies (15.1%) were undertaken in outpatient clinics [ 34 , 38 , 43 , 55 , 60 , 71 , 73 , 74 , 81 , 91 , 94 , 96 , 97 ]. Three studies (3.4%) reported on inpatient and outpatients as participants [ 65 , 72 , 93 ] and three studies (3.4%) included data collected from health professionals [ 40 , 41 , 48 ]. Nine studies (10.4%) took place within oncology, haematology or palliative care inpatient or outpatient units [ 18 , 37 , 40 , 41 , 46 , 54 , 56 , 88 , 90 ].…”