Faulkner wrote the code, using the computer language MUMPS. The founder of Meditech, an electronic health record company, had developed it in 1968 at Mass General Hospital.

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Dr. James Perrin, the director of the division of general pediatrics at the Mass General Hospital for Children in Boston, says it takes more than one doctor's visit to get an ADHD diagnosis right. (Perrin helped write guidelines for diagnosing ADHD in general practice or family practice settings, which were published in 2000, but did not participate in Garland's study).

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They are on strike for half a day on Thursday and are taking part in a mass rally outside Hexham General Hospital.

BBC: North East health workers strike over travel pay cuts