Fig. 1. Flow diagram for the video being studied. First, videos were gathered using the keyword “lung cancer,” and 224 which had at least 10,000 views were included. Among these videos, 28 related to celebrities or drama were excluded from analysis. Seven videos were additionally excluded because 5 videos were less than 1 minute long and 2 videos dealt with other cancers besides lung cancer. Seventeen news videos that delivered information only on lung cancer were excluded. One video was deleted during the study period. A total of 171 videos were analyzed.
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