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Subjects
- Pennsylvania3
- Ear Diseases -- therapy2
- Esophagoscopy2
- Insufflation -- instrumentation2
- Bronchi -- injuries1
- Bronchoscopy1
- Ear, Middle1
- Endoscopy -- methods1
- Foreign Bodies1
- Gastroscopy1
- Hearing Disorders -- therapy1
- Philadelphia1
- Respiratory System1
- Root Canal Preparation -- instrumentation1
- Tinnitus -- therapy1
- Tracheotomy1
- Treatment Outcome1
- Upper Gastrointestinal Tract1