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Retrospective Studies
Risk Factors
Treatment Outcome
Prospective Studies
Cohort Studies
Time Factors
Smoking Cessation
Smoking
Tobacco Use Disorder
Tobacco, Smokeless
Nicotine
Bupropion
Double-Blind Method
General Anesthesia
Noninvasive Ventilation
Anesthesia
Spinal Anesthesia
Pilot Projects
Case Control Studies
Young Adult
Co-Publications
37
35
33
30
29
24
21
16
15
14
13
11
10
9
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