Theophylline anhydrous medical inhaler, conceptual image. A bronchodilator used to relax the smooth muscles in the airways and improve breathing in asthma and COPD (chronic obstructive pulmonary disease). | |
Licence : | Libre de droits |
Crédit: | Science Photo Library / Bulgar, Wladimir |
Model Release : | Disponible |
Property Release : | Non requis |
Restrictions : | - |