Cigarette

Symptoms and Functions in Patients With COPD and Chronic Bronchitis Switching From CIG to THS

Pharmacokinetics and Pharmacodynamics of THS With LEVIA Compared to THS With TEREA and to Cigarettes

Informing Oral Nicotine Pouch Regulations to Promote Public Health

Bronchoscopy in Determining the Effect of E-Cigarette Smoking on Biomarkers in the Lungs

Very Low Nicotine Content Cigarettes and E-Cigarettes in Promoting Smoking Cessation in Daily and Intermittent Cigarette Smokers

Acute Pharmacokinetic and Pharmacodynamic Effects of "Tobacco-Free" Oral Nicotine Pouches in Smokers

Comparison of Abdominal Aortic Aneurysm Growth in Adult Smoking Patients Who Either Switch to IQOS, Continue Smoking, or Quit Smoking.

A Study to Assess the Nicotine Pharmacokinetics, Tolerability and Safety With a New Oral Nicotine Replacement Product in Healthy Japanese Smokers

Effect of Switching From Cigarette Smoking to THS on Systemic Endothelial Function in Subjects With Established Atherosclerotic Disease

Effect of Switching From Cigarette Smoking to THS on Disease Progression in Mild to Moderate COPD Subjects With Chronic Bronchitis Symptoms.

Effect of Switching From Cigarette Smoking to the Use of IQOS on Periodontitis Treatment Outcome

Hookah Smoking, Carbon Monoxide, and Coronary Endothelial Function

Prefatory Study to Explore Changes in Nasal Mucociliary Clearance and to Standardize Nasal Scraping Procedure

Effect of Smoking on Ventilation-Perfusion Ratio

Nicotine Metabolizers and [11C]-(+)-PHNO

A Study of Blood Levels of Nicotine Following an Electronic Cigarette

Acute Physiological Effects of Electronic Sigarette vs Cigarette Smoking

Comparison of Hookah and Cigarette Smoking