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Mollen Immunization Clinics is headquartered in Scottsdale , Arizona , USA .
 Mollen Immunization Clinics, Scottsdale , Arizona, USA
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Mollen Immunization Clinics, Scottsdale , Arizona, USA