There are multiple definitions:

1. International Electrotechnical Commission(English)

   • Biophysics, Organizations (international), Engineering aspects

2. immune evasion cluster(English)

   • cluster located on ß-haemolysin-converting bacteriophages (ßC-Fs), encodes the immune-modulating proteins chemotaxis inhibitory protein, staphylococcal complement inhibitor (SCIN), staphylococcal enterotoxin A and staphylokinase
   • SCIN, CHIPS, SEA
   • Immunology
   • https://doi.org…91.2010.03227.x

3. individual equivalence coefficient(English)

   • assessed to quantify interchangeability of two methods, calculated as [QTR -  QRR] / (QRR/2), where QRR refers to the mean of the squared differences between two pairs of within-patient human (reference) measurements, and QTR refers to the mean of the squared differences between within-patient measurements from the automated analysis and each of two human measurements
   • AI, HFrEF, LVEF
   • Statistics, Diagnostics, Artificial intelligence, Cardiology
   • https://doi.org….1002/ejhf.3783