aerodigestive tract papillomatosis的用法和样例：
- SEPs make up 4% of all plasma cell tumors and can occur in any site in the body, but are found mainly in the upper aerodigestive tract (UAD).
- Objectives: Flexible endoscopy (FE) for the pediatric aerodigestive tract is an invasive and complicated procedure;therefore it usually is performed under an inpatient setting.
- He owns a large tract of forest.
- He had an infection in the upper respiratory tract.