interesting facts about smokeless tobacco 10 Smokeless Tobacco Freedom | Facilitator Guide Flavored tobacco use among youth
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Stroke 30 , 651655 (1999)

Briefly, research staff used a digital timestamp feature in an open-source video editing software to estimate start and end times for individual puffs based on various physical cues (e.g., inhaling, glowing cigarette tip), prioritizing overall puffing behaviors (e.g., multiple occurrences of tip glowing without removing the cigarette from the mouth [stutter puffs] were treated as a single puff)
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It is when you smoke it and how long you stay high

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