Additionally, chromatographic assay devices according to the present invention allow the rapid and accurate detection of clinically important analytes, such as Streptococcus A and B antigen, hemoglobin for the determination of fecal occult blood, and {HEAD ~ antibody} to {TAIL ~ Helicobacter pylori}, as well as clinically important haptens 
to
Additionally , chromatographic assay devices according to the present invention allow the rapid and accurate detection of clinically important analytes , such as Streptococcus A and B antigen , hemoglobin for the determination of fecal occult blood , and { HEAD ~ antibody } to { TAIL ~ Helicobacter pylori } , as well as clinically important haptens
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