Hints and tips:
...Stephen Evans, a professor in pharmacoepidemiology at the London School of Hygiene and Tropical Medicine, said there was an “element of uncertainty” in the Russian results....
...We are in the beautiful, cloistered grounds of Jesus College, being guided through the collection by Stephen Heath, keeper of the Old Library, and Madelin Evans, the archivist who has spent the past year...
...Stephen Cave is writing a book about immortality ………………………………………………………....
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