Correction: Sensitivity of self-reported opioid use in case-control studies: Healthy individuals versus hospitalized patients

• Hamideh Rashidian,
• Maryam Hadji,
• Maryam Marzban,
• Mahin Gholipour,
• Afarin Rahimi-Movaghar,
• Farin Kamangar,
• Reza Malekzadeh,
• Elisabete Weiderpass,
• Abbas Rezaianzadeh,
• Abdolvahab Moradi,
• Nima Babhadi-Ashar,
• Reza Ghiasvand,
• Hossein Khavari-Daneshvar,
• Ali Akbar Haghdoost,
• Kazem Zendehdel