white spots on gums from chewing tobacco Pathologic Manifestations of Smokeless Tobacco

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Materials and methods: Strain-gauge plethysmography was used to measure forearm blood flow (Bf), vascular resistance (Vr), and venous capacitance (Vc) and outflow (Vf) at rest (R) and after occlusion (Oc), whereas heart rate (HR) and blood pressure (BP) were measured using standard automated auscultatory methods immediately before and after a 30-min WP smoking session

While ST products differ in composition (containing tobacco leaf and higher levels of TSNAs), they share the oral route of nicotine absorption and have been linked, particularly in recent comprehensive reviews, to increased risk of fatal cardiovascular events (MI and stroke) (18, 29)

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