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Research conducted by Wellcome and published in September found that third of African and Asian researchers seeking visas for short term visits to Britain had encountered problems Research conducted by the Wellcome and published in September found that a third of African and Asian researchers seeking visas for short term visits to Britain had encountered problems NegativeLONDON Scientists in Britain expressed concern on Thursday after at least 17 delegates from Africa and Asia wanting to attend a health conference in London were denied visas http://www.reuters.com/places/africa/article/us-science-britain-visas/scientists-angry-at-uk-visa-denials-for-african-asian-researchers-idUSKBN1ND2B02018-11-09