There are multiple definitions:

1. partial flip imaging(English)

   • MRI
   • Medical imaging

2. progression-free interval(English)

   • one of four survival outcomes
   • DFI, DSS, OS
   • Quality and outcomes
   • https://doi.org…967-022-03313-x

3. platinum-free interval(English)

   • prolonging with an effective non-platinum regimen improves outcome with subsequent third-line platinum treatment
   • PLD, PPS, OC
   • Ovary and uterus, Oncology
   • https://doi.org…3/annonc/mdr321