A method for determining {HEAD ~ the presence} of {TAIL ~ occult blood} in fecal material in the water of a toilet bowl using a chemical test pad comprising the steps of: 
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A method for determining { HEAD ~ the presence } of { TAIL ~ occult blood } in fecal material in the water of a toilet bowl using a chemical test pad comprising the steps of :
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH