text: Yo, check it, despite the norm
  We gotta know the form, before we perform
  Diagnostic pretransplant deceased donor kidney biopsy
  But the prognostic significance, it's still a mystery
  
  We analyzed 371 biopsies, let me break it down
  Correlated the findings with graft failure, hold up, no frown
  Glomerular pathology, percent glomerulosclerosis, that's GS
  Glomerular size and periglomerular fibrosis, address
  
  Vascular pathology, arterial wall-to-lumen ratio, WLR
  Arteriolar hyalinosis, interstitial pathology, come feel the flow
  Cumulative fibrosis and presence of scar, that's how we go
  Two-thirds of the study for development, let's show
  
  Biopsy features, independent risk of graft failure, listen up
  GS greater than or equal to 15%, it's tough
  Interlobular arterial WLR greater than or equal to 0.5, oh yeah
  PGF, arteriolar hyalinosis, or scar, beware
  
  From these parameters, we created the Maryland Aggregate Pathology Index
  Validated on the remaining one-third, let me be specific
  Five-year actuarial graft survival, here's the deal
  MAPI scores 0 to 7, 90% survival, it's real
  
  Scores 8 to 11, 63% survival rate, hold tight
  Scores 12 to 15, 53% survival, it's a fight
  We conclude MAPI can help transplant physicians see
  Graft survival from preimplantation biopsy, in this study's spree
  
  Cold ischemia over 24 hours, GS less than 25%, you see
  MAPI's the key, for transplant physicians, undoubtedly