The research, carried out by psychologists at the University of London's Institute of Education, suggests that schools which equate "effectiveness" with good exam results for the majority of pupils may direct resources towards those likely to reach government-set targets.

BBC: Doubts cast on inclusive education

The table on this page lists companies that Leerink Swann or JMP Securities consider good gambles: These are smaller biotechs with drugs that have already shown signs of effectiveness.

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