Clinical research. Nurse explaining to a patient how to use a peak flow meter to measure lung function,prior to taking part in a research project | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Life In View |
Bildgröße: | 5099 px × 3482 px |
Modell-Rechte: | vorhanden |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: |
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