“…Five articles provided information on smoke avoidance behaviours [19,20,22,25,30,31]. Twenty-nine papers provide advice on message style, with nine relating to message content [9,18,20,22,27,[32][33][34][35], nineteen relating to message style [11,14,15,18,19,21,22,30,[32][33][34][36][37][38][39][40][41][42][43][44], nine relating to the origin of the message [10,14,15,18,21,22,34,38,42,45], and seven specifically mentioning two-way dialogue [15,18,33,36,[46...…”