text: Yo, check it out, here's the lowdown
  We did a study, had to know the thickness, yo
  Of cortical bone, CT's the technique we chose
  To measure the density accurately, that's how it goes
  
  We built a phantom, bone-like material, you see
  To mimic different cortical widths, that's the key
  Scanned it with a GE 9800 CT machine
  And the OsteoQuant, specialized for bone, so pristine
  
  For each scanner, we found the minimum width
  Needed to get the right material density, it's legit
  Then we measured the cortex in 761 healthy peeps
  Ages four to 84, we covered all the streets
  
  In the phantom, we saw a linear trend
  Density fell with width, that was the message it sent
  In humans, height and weight didn't play a role
  As long as the cortical width was above our goal
  
  2 to 2.5 millimeters, that's what we found
  If you wanna measure accurately, gotta be profound
  Cortical width increased till 30, then started to shrink
  After 50, it decreased, that's what we think
  
  To wrap it up, CT can measure cortical bone
  In the appendicular skeleton, no need to groan
  Just make sure that cortex is thick enough, yo
  Around 2 to 2.5 millimeters, and you're good to go!