this should be proportionally compensated, taking smoking history and any possible genetic susceptibility into account
If the use of e-cigarettes by a smoker with COPD can reduce use of combustible tobacco products and can decrease lung inflammation secondary to the reduction of exposure to toxicants found in combustible tobacco smoke but not e-cigarettes, this could be beneficial to the patients with COPD

rainbow, rainbow Dough water, flour / flour, puddle / rain, flour Dragon fire, lizard / air, lizard / sky, lizard / lizard, airplane / lizard, legend / lizard, story Drone airplane, robot / robot, helicopter / robot, paper airplane / robot, seaplane Drum wood, leather / wood, fabric / wood, music Drunk human, alcohol / human, wine / human, beer Dry Ice cold, carbon dioxide / ice, carbon dioxide Duck water, bird / bird, pond / bird, lake / time, duckling / duckling, big / water, owl / owl, pond / owl, lake / water, pigeon / pond, pigeon / pigeon, lake / water, chicken / chicken, pond / chicken, lake Duckling egg, duck Dune wind, desert / wind, sand / wind, beach / sand, desert / desert, sandstorm Dust earth, air / air, soil / air, land Dynamite gunpowder, wire / gunpowder, pipe / gunpowder, container Eagle bird, mountain / bird, mountain range Earth Available from start
Never cut one open
More than 1/3 of the worlds smokers are Chinese