Drew Lindon, from Prostate Cancer UK has told ITV London that the introduction of a new prostate cancer drug was vital as it could help to prolong life for a "few extra months to spend with love ones".
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Police have released an e-fit of a man suspected of attacking her.
The force has been tweeting after carrying out a series of dawn raids.
Adenike Akingbogun made the dangerous manoeuvre after ignoring the crossing lights and driving onto the tracks.