RT Journal Article SR Electronic T1 Filter paper blood samples used in serological studies of respiratory virus infections in children JF Journal of Clinical Pathology JO J Clin Pathol FD BMJ Publishing Group Ltd and Association of Clinical Pathologists SP 41 OP 43 DO 10.1136/jcp.24.1.41 VO 24 IS 1 A1 S. M. K. Chishty YR 1971 UL http://jcp.bmj.com/content/24/1/41.abstract AB Filter paper blood samples were used to measure complement-fixation antibody in 34 children with sore throats. The method was satisfactory and should be particularly useful to minimize trauma in general practice and to conserve reagents in developing countries.