There are multiple definitions:

1. right lower lobe(English)

   • LLL, RML
   • Pulmonology

2. radiolucent line(English)

   • refers to low-contact-stress mobile-bearing total knee arthroplasty
   • CRP, LCS, TKA
   • Orthopedics, Knee
   • https://doi.org…471-2474-12-142