TY - JOUR T1 - Observational studies of exposure to tobacco and nicotine products: Best practices for maximizing statistical precision and accuracy AU - Cohen, Gal AU - Cook, Steven PY - 2025 DO - 10.1016/j.isci.2025.111985 JO - iScience VL - 28 IS - 3 SN - 2589-0042 ER -