There are multiple definitions:

1. controlled before-after [study](English)

   • ITS, QRCT, RCT, cRCT, EPOC
   • Clinical trials, Evidence based medicine
   • https://doi.org…8.CD007459.pub2
   • https://doi.org…8.CD013463.pub2

2. cost-benefit analysis(English)

   • CMA, CUA
   • Health care, Financial issues
   • https://doi.org…060028016667741

3. current behavior algorithm(English)

   • scoring system for behavior
   • ADI-R, ADOS-G, ASD, PANSS, PAUSS, SSD, SRS
   • Behavior(al science), Scoring systems/scales
   • https://doi.org…psm.2020.05.006

4. cryoballoon ablation(English)

   • LA, PeAF, PVI, PWI, AF, CB2-PVI, CB
   • Cardiology, Surgery
   • https://doi.org…uropace/euac005

5. child-bearing age(English)

   • period from puberty when the menstrual period starts to menopause. The average woman's reproductive years are between ages 12 and 51 years. Fertility naturally declines with aging
   • Pregnancy, Woman /female, Embryology /reproduction
   • https://doi.org…000000000003914