2 types of smokeless tobacco Chewing It may be smokeless, but
Description
The usability of the app, assessed by the SUS at 24 weeks, was rated at 79.68 (SD = 13.15)

All methods were performed in accordance with relevant ethical guidelines and regulations

Focus groups allow participants to interact with stimuli and within each group participants were shown, and allowed to handle, the Canadian inserts (Figure 1) and, following discussion of these, the RYO inserts (Figure 2)

But that was the way he taught
Rich stuff
