"No words that even the best writer in the world could describe such horrendous pain," said Marie Donovan, talking about the agony her sister suffered before she died of cancer in July.
Her sisters said doctors at three Birmingham hospitals failed to correctly diagnose Jeannine Harvey's cervical cancer more than 30 times.
Some viewers may find images in Martha Fairlie's report distressing:
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The annual event has earned a place in the record books ahead of the grand final of the 60th anniversary show in Austria this evening.
Local authorities said the move is necessary to "avert the growing number of deaths and increasing harm linked to psychoactive substances".
Some students argued that the centuries-old tradition of wearing gowns, suits and mortarboards to exams was 'archaic' and looked elitist.