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- Copyright : SPL/IAN BODDY / BSIP
- Collection : Science Photo Library
- Model release : oui
- Property release : Sans objet
- Autorisations : Toute utilisation
Légende : Lung function test. Six year old boy breathing into a spirometer, a tool for measuring lung function. The patient breathes into the mouthpiece as hard as possible. This determines the rate at which air is expelled from the lungs and helps to diagnose asthma and other lung disorders.