MODEL RELEASED. Middle-aged man blowing into a peak flow meter during a visit to his general practice doctor. The meter is used to measure the maximum rate of air flow during an exhaled breath. The reading can be used to determine the severity of a lung problem such as asthma. Models: Dr Quentin Shaw,Mr Pomeroy | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Fraser, Simon |
Taille de l’image : | 4882 px × 3591 px |
Model Release : | Disponible |
Property Release : | Non requis |
Restrictions : | - |