There are multiple definitions:

1. relapse-free survival(English)

   • time until recurrence/death. In high-risk stage II-III melanoma a valid surrogate endpoint for OS for adjuvant randomized studies assessing interferon or a checkpoint inhibitor
   • DFS, MACE, MFS, OS, PFS, BCFI, BCSS, DDFS, DEFS, DRFi, DRFS, ICH, iDFS, LRFS, NC, RFi, TTE, TTP
   • Quality and outcomes, Oncology, Prognosis
   • https://doi.org…093/jnci/djx133
   • https://doi.org…3/annonc/mdv106

2. Rhoten fatigue scale(English)

   • a visual analogue scale
   • POMS, VAS, FSS, PFS
   • Fatigue, Scoring systems/scales
   • https://europep…cle/med/2013047
   • https://doi.org…8.CD013074.pub2

3. rearfoot strike(English)

   • refers to the relationship with peak vertical instantaneous loading rate
   • FFS, GRF, MFS, VILR
   • Musculoskeletal system, Biophysics
   • https://doi.org…14.2016.1225970

4. Regional Flight Surgeon(English)

   • assists the FAS
   • AME, ASI, ATC, FAA, FAS, HIMS, IMS, SOO, TOC
   • Aviation medicine, Surgery
   • https://pubmed.…h.gov/30212088/
   • http://pubmed.n…ih.gov/33620822

5. recurrence-free survival(English)

   • defined as the duration from the date of diagnosis by operation to the date of disease recurrence or progression
   • CND, CSS, DLT, DTC, FNA, LLND, LNY, OPTN, OS, PLN, PTC
   • Oncology, Prognosis, Pulmonology
   • https://doi.org…2659/AOT.941301
   • https://doi.org….1002/cam4.2762