“…The providers of humanitarian radio were most often NGOs (based on request from the affected country) in all included studies except three, where ordinary public service radio was used [26,27,28]. Several stakeholders, including local authorities [21,22,26,28,29], UN agencies [22,24], NGOs [18,19,24] and private companies [22], used humanitarian radio as a means of transmitting their information to the affected community. Among these stakeholders, actors from the health sector [18,19,21,22,25,27,29], water and sanitation [22,28], protection [19,24] and education [19] were represented.…”