There are multiple definitions:

1. Independent Professional Review(English)

   • Medical publications

2. intellectual property rights(English)

   • Legal issues

3. interproximal reduction [procedure](English)

   • Dentistry, Gerontology/Geriatrics, Pain
   • https://doi.org…55/2022/2754051

4. injury proportion ratio(English)

   • an epidemiological measure used in sports medicine and public health to compare the relative frequency of a specific type of injury across two different groups, situations, or activities
   • AE
   • Injury, Sports medicine, Ratio-based metric, Epidemiology, Public Health, Risk factor
   • https://doi.org…9/neu.2017.5032