RT Journal Article SR Electronic T1 Semi-Automated method for the differential determination of plasma catecholamines JF Journal of Clinical Pathology JO J Clin Pathol FD BMJ Publishing Group Ltd and Association of Clinical Pathologists SP 113 OP 113 DO 10.1136/jcp.22.1.113-a VO 22 IS 1 YR 1969 UL http://jcp.bmj.com/content/22/1/113.1.abstract AB