READING periscope for iron lung patients.  [electronic resource] 

 -  British medical journal  Nov 1957 
 - 1237 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0007-1447 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Iron<br/>Patients<br/>Reading<br/>Ventilators, Mechanical<br/>Ventilators, Negative-Pressure