Respiratory system
Across
- 2. cause: mycobacterium tuberculosis
- 5. beta2 adrenoceptor agonits(SABA)
- 7. cause: genetic, immune, system, environmental factor
- 8. expectorats
Down
- 1. persistent cough
- 3. antihistamine drugs
- 4. sore thorat,painful swallowing
- 6. upper respiratory tract infection