text: Yo, check it out, listen to this rhyme,
  'Bout rats with polyvinyl rings, it's prime time.
  Implanted under dorsal skin, no joke,
  Stimulating granulation tissue, watch it smoke.
  
  Brain extract with FGF, that's the key,
  Cattle be the source, you feelin' me?
  Wound healing gets a boost, it's for real,
  Dependent on doses, rats aged two and six, the deal.
  
  Third and seventh days, post-op, it's clear,
  Repetitive FGF S3, no need to fear.
  Or coupling it with SYSpur-derm, synthetic and fly,
  Inducing the desired action, don't ask why.
  
  Biochemical separation, more fractions to explore,
  Enhancing granulation tissue, like never before.
  One fraction concentrated, potent and tight,
  One-tenth of the dose, still brings the same might.
  
  Hexosamine and hydroxyproline, levels on the rise,
  Stimulating fibroblasts, no need for disguise.
  These findings are discussed, let's break it down,
  Rat research in the lab, we run this town.