An assay device for detection and determination of an analyte in a test sample uses a barrier containing {HEAD ~ an aperture} to control the application of reagents to {TAIL ~ the device} for greater reproducibility of results 
An assay device for detection and determination of an analyte in a test sample uses a barrier containing { HEAD ~ an aperture } to control the application of reagents to { TAIL ~ the device } for greater reproducibility of results
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH