CHOW, B F <br/><br/>
Agewise variation of vitamin B12 serum levels.  [electronic resource] 

 -  Journal of gerontology  Apr 1956 
 - 142-6 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0022-1422 
<br/><br/><label>Standard No.: </label>10.1093/geronj/11.2.142  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Aging--physiology<br/>Blood<br/>Humans<br/>Vitamin B 12--blood<br/>Vitamin B Complex