Dr John Stephens

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Dr John Stephens

Department of Chemistry

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Dr John Stephens is a Senior Lecturer in the Department of Chemistry at Maynooth University

Former Russian spy Sergei Skripal and his daughter Yulia, who have been in hospital after being found unconscious outside a shopping centre in Salisbury

A short history of deadly potions and poisons

Analysis: recent high profile poisoning cases have highlighted our dark fascination with death by poisoning

Poison • 09 Mar 18

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