Acute Otitis Media

• Mehiläinen, private practice — Oulu, Finland

• Children's National Medical Center — Washington D.C., District of Columbia, United States
• Children's Hospital of Pittsburgh of UPMC — Pittsburgh, Pennsylvania, United States

• Mayo Clinic in Rochester — Rochester, Minnesota, United States

• Johns Hopkins Children's Center — Baltimore, Maryland, United States

Not specified

• The Interregional Association for Clinical Microbiology and Antimicrobial Chemotherapy — Smolensk, Russia

• Bellevue Pediatric Associates — Bellevue, Pennsylvania, United States
• Allegheny General Hospital — Pittsburgh, Pennsylvania, United States

• Hospital Universitario QuirónSalud Pozuelo — Pozuelo de Alarcón, Madrid, Spain

• Central California Ear, Nose and Throat — Fresno, California, United States
• South Florida Pediatric Otolaryngology — Fort Lauderdale, Florida, United States
• Charlotte Eye, Ear, Nose and Throat Associates — Charlotte, North Carolina, United States
• Charlotte Eye, Ear, Nose and Throat Associates — Matthews, North Carolina, United States

Not specified