Once again, spoilers lurk beyond this point, especially in the
story-specific sections. You've been warned.
On 'Old Scars'
- imouto-chan: 'dear little sister'
- Even with an HLA (Human Leukocyte Antigen) mismatch of 0, which means
the best tissue compatibility that can be hoped for, Kana's immune system
could still try to attack the transplanted kidney. So, for as long as she
has it, she has to take immunosuppressant medication to limit the chances
of this happening.
- While researching the effects of kidney transplants for this story, I
came across the distressing fact that kidney transplants don't last forever.
For some reason, I thought they did. But current medical research shows
that a kidney transplant generally lasts for 15 to 20 years, on average.
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