Subjects
- Respiratory Mechanics -- physiology[remove]5
- Clothing -- adverse effects2
- Pressure -- adverse effects2
- China1
- Health Education1
- Larynx -- anatomy & histology1
- Lung -- anatomy & histology1
- Medulla Oblongata -- blood supply1
- Medulla Oblongata -- physiology1
- Pharynx -- anatomy & histology1
- Thoracic Cavity -- anatomy & histology1
- Voice -- physiology1
