Fig. 1From: The role of nutritional support with probiotics in outpatients with symptomatic acute respiratory tract infections: a multicenter, randomized, double-blind, placebo-controlled dietary studyThe consolidated standards of reporting trials flow diagram of study participants. TDS, the test dietary supplement; RID, the Respiratory Illness Diary; AE, adverse event. A dash arrow shows participants returned the PCQ-19 in a 3-month follow-upBack to article page