Pharyngitis

• Medicover — Bucharest, Romania
• Medicover — Bucharest, Romania
• Medicover — Bucharest, Romania
• Victor Babes Clincial Hospital — Bucharest, Romania

• doc-HNO for the DoriPha investigators — Röthenbach an der Pegnitz, Germany

• AHEPA University Hospital — Thessaloniki, Greece

• University of Connecticut - Student Health Services — Storrs, Connecticut, United States

• Bluestone Center for Clinical Research — New York, United States

• University of Connecticut, Student Health Services — Storrs, Connecticut, United States

• New York, United States
• New York, United States
• Alassio, Italy
• Albenga, Italy

• Yeungnam University Hospital — Daegu, South Korea

• Keimyung University — Daegu, Non-US/Canada, South Korea

Not specified