Ключевые слова: abstract, addiction, alkaloid, atom, atomic, background, biochemistry, cell, cellular, chain, chemical, chemistry, cig, cigarette, clipart, compound, drug, element, flat, formula, harmful, hex, hexagon, icon, illustration, isolated, line, linear, medical, medicine, model, molecular, molecule, nicotin, nicotine, nikotin, nikotine, organic, plant, poison, research, science, scientific, sign, simple, skeletal, smoking, structural, structure, symbol, tobacco, vape,