The most popular expert videos viewed by the participants were “What does it mean if a patient has ‘metastatic lung cancer’?” (13,475 views), “When would a patient with lung cancer consider ‘Palliative Care’?” (10,823 views), “What is a lung biopsy?” (9947 views), “What is an EGFR mutation for lung cancer?” (6867 views), and “How does low-dose CT show whether I have lung cancer?” (5690 views) (Table 2). Here, EGFR is linked to lung cancer.