“…The studies were conducted in a range of countries Australia (n=6), Canada (n=4), United States of America (USA) (n=3), Germany (n=2), Italy (n=2), and Israel (n=1), see . Three studies explored the experiences of healthcare professionals on the provision of IO 20,31,35 . Six studies compared IO services in the hospital setting 18,[36][37][38][39][40] .…”