text: Yo, peep this, check it out
  We got these immunoassays, commercially available, no doubt
  Detecting primate blood, that's the game
  But which ones are legit? Let me explain
  
  We evaluated two hemoglobin tests, no fakin'
  ABAcard(®) HemaTrace(®) and HemDirect Hemoglobin, they're takin'
  Against the glycophorin A test-RSID™-Blood, we compared
  Sensitivity, specificity, and effectiveness, we dared
  
  Using different substrates, stain remover, and aged stains
  We put these tests to the test, no time to waste
  HemaTrace(®) came out on top, highest detection rate
  But HemDirect Hemoglobin, sensitivity ten times lower, wait
  
  No false positives for HemDirect Hemoglobin, that's the deal
  But ABAcard(®) HemaTrace(®) showed false positives for real
  With saliva, it's sensitive, but too much, you see
  Givin' false positives, not what we need it to be
  
  RSID™-Blood, the lowest sensitivity, couldn't keep up
  And 40% false positives with saliva, that's tough
  Aged blood-stains and stain remover got the best of it
  Lowest efficacy, it couldn't handle the hit
  
  Now, when it comes to substrates, listen close
  Wood, metal, brick, soil, they don't impose
  No influence on blood testing, that's the fact
  But soil substrate messed with STR amplification, that's a crack
  
  In the end, the HemDirect Hemoglobin test took the crown
  More reliable for the parameters we put down
  ABAcard(®) HemaTrace(®) and RSID™-Blood, they fell behind
  HemDirect Hemoglobin, the champ we find