‘It’s hard to describe but it was a heavy, slightly musky aroma.
‘I had no idea that this was unusual and hadn’t been recognised before.’
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Describing how she got in touch with the scientists, she said: ‘I was attending a Parkinson’s UK research lecture at the University of Edinburgh I mentioned it to the researcher, Dr Tilo Kunath.
‘Tilo was interested and together we worked out ways to see if I could detect it from other people with Parkinson’s and not just Les.
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