Author's response: Cell phone use and behavioural problems: indications of unobserved heterogeneity in Divan et al's study comment

Exposure

• • mobile communications
  • mobile phone
• • personal

Commented articles

• Divan HA et al. (2012): Cell phone use and behavioural problems in young children
• Aarstad J (2011): Cell phone use and behavioural problems: indications of unobserved heterogeneity in Divan et al's study