Journal of the American Medical Association. 

 - December 
 - United States   American Medical Association   2020 
 - 2131-2566  Hard bound leather 
<br/><br/> Volume: 324<br/>Number: 21-24<br/>2020 
<br/><br/><label>ISSN: </label>0098-7484 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Medicine