[] Furthermore, smokeless tobacco products contain cancer-causing agents, similar to tobacco-specific nitrosamines, polycyclic sweet hydrocarbons, and radioactive polonium
lack of standardized quality control 13
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Chemotherapy and Targeted Treatment: In case of advanced or recurrent cases
Yu Y, Hu J, Wang PP, Zou Y, Qi Y, Zhao P et al (1997) Risk factors for bladder cancer: a casecontrol study in Northeast China