The Health Literacy Rewriter

Rewrite the material below for lower health literacy.

Original:
[PASTE]

Target reading level: [GRADE LEVEL]

Do this by:
1. Replacing every technical term with a plain word, or defining it
   in the sentence where it first appears
2. Splitting long sentences
3. Converting passive voice to active
4. Replacing abstract statements with concrete ones
5. Converting statistics to natural frequencies ("3 out of 100"
   not "3%") where I have supplied numbers
6. Adding a "the short version" summary box at the top

Then give me:
- The rewritten text
- The estimated reading level before and after
- A list of clinical nuance that was lost in simplification, so I
  can decide whether any of it must be restored