9651
Althaus moved to London , where as an assistant to Robert Bentley Todd he carried out the treatment of patients at King 's College Hospital using electricity .
 person: Robert Bentley Todd
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 person: Robert Bentley Todd