Rotherham GP Dr Vetrivel Velamail was diagnosed with an inoperable brain tumour after becoming concerned about his eyesight. He is concerned funding for research into this type of cancer is not in line with other forms and more about the number of people with it should be made aware to GPs.
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The incident happened on the A1133 at Laugherton on Friday evening.
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Campaigners fighting plans to cut down more trees in Sheffield stepped up their opposition with a march and rally.