Exploring the barriers and facilitators to the uptake of smoking cessation services for people in treatment or recovery from problematic drug or alcohol use: A qualitative systematic review

• Eric Osayemwenre Iyahen ,

  Roles Conceptualization, Data curation, Formal analysis, Methodology, Writing – original draft, Writing – review & editing

  * E-mail: ericiyahen@gmail.com

  Affiliation Department of Public Health, Ministry of Health, Benin City, Edo State, Nigeria

  https://orcid.org/0000-0002-1468-9457

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• Osazee Omoregbe Omoruyi,

  Roles Data curation, Formal analysis, Methodology, Writing – review & editing

  Affiliation Ministry of Health, Benin City, Edo State, Nigeria

  https://orcid.org/0000-0002-1529-3163

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• Neneh Rowa-Dewar,

  Roles Conceptualization, Methodology, Supervision, Writing – review & editing

  Affiliation Usher Institute, University of Edinburgh, Edinburgh, United Kingdom

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• Fiona Dobbie

  Roles Conceptualization, Formal analysis, Methodology, Supervision, Writing – review & editing

  Affiliation Usher Institute, University of Edinburgh, Edinburgh, United Kingdom

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