الفهرس 
acknowledgmentOnly 14 pages are availabe for public view
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Abstract
This work concerns fifteen normal subjects twelve malas & three females they have been studied as follows :
1- History & physical examination as well as reontgenographic and electrocardiographic findgs were within the normal accepted range for the normal individuals from our community .
2- Pulmonary function studies including lung volume and capacities blood gas tension and arterial oxygen saturation at rest &PH all were within the normal accepted range .
3-Regional distribution of pulmonary perfusion using an intravenous injection of a bolus of xenon 133 about 1-2 mcu .