how many smokeless tobacco users get cancer Odds Ratios With 95% Confidence Interval for Oral From 8ight Ways to Prevent Cancer:

However, its relationship with prostate cancer (PCa) is unclear

PMID 15360037

So, get winding up those windows before smoking if you want to avoid a brush with the law

[15] NASA was still adjusting to female astronauts, and engineers had asked Ride to assist them in developing a "space makeup kit", assuming it would be something a woman would want on board

Assessing the lung cancer risk reduction potential of cMRTPs is hampered by (i) the absence of clinical risk markers that are predictive of future lung cancer development, (ii) the latency of lung cancer manifestation (decades of smoking), and (iii) the slow reduction in excess risk upon cessation and a fortiori upon switching to a cMRTP