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Subjects
- Aged1
- Airway Obstruction1
- Anesthesiology -- instrumentation1
- Anesthesiology -- methods1
- Cellulitis -- prevention & control1
- Cellulitis -- therapy1
- Comorbidity1
- Emergency Medical Services -- methods1
- Evidence-Based Medicine1
- Evidence-Based Practice -- organization & administration1
- Follow-Up Studies1
- Health Policy1
- Health Services for the Aged1
- Health Status1
- Humans4
- Hypoxia -- prevention & control1
- Insurance, Health1
- Intubation, Intratracheal -- instrumentation1
- Intubation, Intratracheal -- methods1
- Laryngeal Masks1