Proposed serum standard for human serum vitamin B12 assay. International Committee for Standardization in Haematology (ICSH).  [electronic resource] 

 -  British journal of haematology  Dec 1986 
 - 809-11 p.  digital 
<br/><br/> Publication Type: Comparative Study; Journal Article 
<br/><br/><label>ISSN: </label>0007-1048 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Anemia, Pernicious--blood<br/>Biological Assay<br/>Humans<br/>Radioisotope Dilution Technique<br/>Reference Standards<br/>Vitamin B 12--blood