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Even with early disease, many smokers have normal chest X-rays

[one_half] [/one_half] [one_half_last] [/one_half_last] [one_half] [/one_half] [one_half_last] [/one_half_last] Figure 1 Shows examples of e-cigarettes sold commonly throughout the United States

Patients who cannot tolerate PPIs or require alternative options may use histamine 2-receptor antagonists H2RAs such as Famotidine or Nizatidine (Ranitidine is no longer recommended due to withdrawal from many markets), which work by inhibiting histamine-induced acid secretion

Participants were asked to remain awake and to keep their eyes open for the duration of the scan