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An article published in the British Medical Journal in December 2004 , by a Dr Sundararajan Rajagopal , Consultant Psychiatrist from St. Thomas ' Hospital in London , highlighted the emergence of the relatively new phenomenon of cybersuicide pacts , addressing it from a psychiatric perspective .
 London
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 London