On a conference call, Glaxo executives argued that a more nuanced look at the study did not reveal heart problems.

FORBES: Magazine Article

It total, 80% of teachers surveyed said they believed poverty had a negative impact on pupils' attainment - with problems including under-achievement, not having a quiet place to study at home, inability to concentrate and lack of access to computers and the internet.

BBC: Poverty hitting pupils' learning, survey suggests