Secondhand smoke exposure among nonsmoking adults in two Nigerian cities

• University of Ilorin Teaching Hospital (NG)
• University of Ilorin (NG)

• University of Nigeria Teaching Hospital (NG)

tal como impresso: CajetanC Onyedum

• Obafemi Awolowo University Teaching Hospitals Complex (NG)
• Obafemi Awolowo University (NG)

tal como impresso: OlufemiO Adewole

• University of Ilorin Teaching Hospital (NG)
• University of Ilorin (NG)

tal como impresso: AdemolaE Fawibe

• University of Ilorin Teaching Hospital (NG)
• University of Ilorin (NG)