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" His condition is serious , " said Rimma Maslova , deputy chief doctor of Hospital No 31 in the Russian capital . "
 Rimma Maslova, Russian, Hospital No 31
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, else, organization, person 
Text: {0} 
Answer:
 Rimma Maslova, Russian, Hospital No 31