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Nicotine
Cotinine
Nicotinic Agonists
Tars
Carbon Monoxide
Carboxyhemoglobin
Smoking
Smoking Cessation
Ulcerative Colitis
Heart Rate
Substance Withdrawal Syndrome
Tobacco Smoke Pollution
Administration, Cutaneous
Double-Blind Method
Enemata
Saliva
Treatment Outcome
Drug Dose Response Relationship
Toxic Plants
Tobacco
Co-Publications
29
12
10
7
6
5
4
3
2
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