TY - GEN AU - Tomar,Scott L AU - Loree,Michael TI - Errors in analyzing associations between use of smokeless tobacco and cigarettes SN - 0965-2140 PY - 2004///0330 KW - Adolescent KW - Adult KW - Bias KW - Epidemiologic Methods KW - Humans KW - Male KW - Research Design KW - standards KW - Smoking KW - psychology KW - Smoking Cessation KW - Tobacco Use Disorder KW - etiology KW - Tobacco, Smokeless N1 - Publication Type: Letter; Comment UR - https://doi.org/10.1111/j.1360-0443.2003.00650.x ER -