Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Representative histologic appearance of rat caudal disc at day 4 and 7 after needle stab and PEMF treatment. Safranin O staining showing matrix production and nucleus pulposus structure; counterstained with Fast Green. A, Day 4 sham control (C). B, Day 4 needle stab (S). C, Day 4 needle stab+PEMF (SP). D, Day 7 sham control (C). E, Day 7 needle stab (S). F, Day 7 needle stab +PEMF (SP). AF, annulus fibrosus; NP, nucleus pulposus; CEP, cartilage endplate
