There are multiple definitions:

1. isolated tumor cell(English)

   • defined as as tumor cell clusters that are <0.2 mm at the largest diameter. Examination of sentinel nodes by serial sectioning and immunohistochemical staining can result in the detection of extremely small tumors
   • MM, IBC
   • Oncology, Histochemistry, Classification
   • https://doi.org…/jgo.2016.27.e1

2. item-total correlation(English)

   • PCS, PSI
   • Statistics
   • https://doi.org…955-020-01346-8

3. indirect treatment comparison(English)

   • SLR
   • Evidence based medicine, Therapeutic approaches
   • https://doi.org….1111/tbj.13345

4. International Tobacco Control(English)

   • refers to association between socioeconomic disadvantage and abrupt versus gradual method of smoking cessation
   • SES
   • Addiction and health, Lifestyle
   • https://doi.org…/ijerph14060573