%0 Journal Article %A K N Frayn %T A simple device for washing out radioimmunoassay tubes. %D 1975 %R 10.1136/jcp.28.1.82-a %J Journal of Clinical Pathology %P 82 %V 28 %N 1 %U https://jcp.bmj.com/content/jclinpath/28/1/82.1.full.pdf