A study in the US has found that smoking increases the risk of breast cancer in older women by almost 20%.
The study adds to a growing weight of evidence linking exposure to tobacco smoke and deadly disease.
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Many affected were seen burying their faces in their hands and people flooded from the room in tears.
June Tron's son Philip was one of 22 people killed when suicide bomber Salman Abedi detonated his device.
Emily, 13, and Adam, 16, have found a way to move on after their traumatic ordeal.