There are multiple definitions:
extremely low frequency(English)
- designation for electromagnetic radiation (radio waves) with frequencies from 3 to 30 Hz
- CNS
- Safety and health
- https://www.osh…v/elf-radiation
elective low forceps(English)
- type of delivery may be used to shorten the second stage of labor without immediate maternal or neonatal side effects
- Obstetrics
- https://www1.cg…ivery/index.htm
epithelial lining fluid(English)
- tissue penetration in achieving successful antimicrobial treatment of nosocomial pneumonia and complicated skin and soft-tissue infections caused by methicillin-resistant Staphylococcus aureus is important
- cSSTI, MRSA, BAL, HMEF
- Microbiology, Pulmonology, Dermatology, Bacteriology
- https://doi.org…007990903512057
- https://doi.org…390/jpm13071146