Porta Serra, M <br/><br/>
[Shut in with only one toy].  [electronic resource] 

 -  Medicina clinica  Nov 1994 
 - 716-7 p.  digital 
<br/><br/> Publication Type: Comment; Letter 
<br/><br/><label>ISSN: </label>0025-7753 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Bibliometrics<br/>Periodicals as Topic--statistics & numerical data<br/>Spain