The Nature of multiple sclerosis 
Papers by Paavo riekkinen, Et. al... 
 - MSS Information Corp. : New York  1973. 
 - 185 p. : ill. ; 24 cm. 
<br/><br/>Includes bibliographies. 
<br/><br/><label>ISBN: </label>0842270701 
<br/><br/><label>LCCN: </label>72-013055 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Multiple sclerosis