There are multiple definitions:

1. metabolic flux analysis(English)

   • MCA
   • Metabolism

2. musculoskeletal function assessment(English)

   • a 101-item questionnaire
   • SMFA
   • Musculoskeletal system, Injury, Orthopedics, Questionnaire
   • https://doi.org…199909000-00006

3. multifactor authentication(English)

   • used as an added layer of protection to secure your information
   • CBP, ESTA
   • Communication, Legal issues

4. multiple-factor analysis(English)

   • is an extension of principal component analysis, which is able to handle both continuous and categorical variables
   • CMR, EDV, EF, ESV, HCPC, HF, LGE, LIC, LV, MIOT, PCA, RV, TI, ß-TI
   • Signal analysis, Statistics
   • https://doi.org…390/jcm12216706