The usual place to start looking for clinical articles is in PubMed. For complex clinical searches, use the PICO format to generate useful search terms and their relationships. See the example below to help format your own PICO search.
Patient, population and/or problem
COPD (chronic obstructive pulmonary disease)
Intervention
nicotine replacement products:
- nicotine transdermal patch
- nasal spray
- oral inhaler
- oral gum
Comparison/Intervention (Optional)
active control or placebo
Outcome(s)
smoking cessation
(COPD OR chronic obstructive pulmonary disease) AND (nicotine replacement products OR nicotine transdermal patch OR nasal spray OR oral inhaler OR oral gum) AND (active control OR placebo) AND smoking cessation
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