“…It does, however, suggest that there is a need for common and consistent terminology when describing whether HFNC is heated or humidified. Of the other six papers that we excluded for not being heated, 27,32,63-66 three 27,32,63 explicitly stated that they were unheated, meaning that three other papers [64][65][66] (of two studies, one 64 reported only as an abstract) may actually have been studies of HHHFNC.…”