RT Journal Article SR Electronic T1 Cobalamins and nitrous oxide: a review. JF Journal of Clinical Pathology JO J Clin Pathol FD BMJ Publishing Group Ltd and Association of Clinical Pathologists SP 909 OP 916 DO 10.1136/jcp.33.10.909 VO 33 IS 10 A1 Chanarin, I YR 1980 UL http://jcp.bmj.com/content/33/10/909.abstract AB