RT Journal Article SR Electronic T1 Notes on Medical Virology JF Journal of Clinical Pathology JO J Clin Pathol FD BMJ Publishing Group Ltd and Association of Clinical Pathologists SP 704 OP 704 DO 10.1136/jcp.31.7.704-a VO 31 IS 7 A1 Gudrun Agnarsdottir YR 1978 UL http://jcp.bmj.com/content/31/7/704.1.abstract AB