Helbing, G <br/><br/>
[The unstable knee].  [electronic resource] 

 -  ZFA. Zeitschrift fur Allgemeinmedizin  Nov 1980 
 - 2101-11 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>1433-6251 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Humans<br/>Knee Injuries--surgery<br/>Knee Joint--surgery<br/>Ligaments, Articular--injuries