The four stages of spinal stenosis are no stenosis, mild, moderate, and severe
The copper peptides for hair growth page discusses how different variants compare for this application
Priyankaa Bhatia

Transporter Endogenous Substrates References MRP1 GSH conjugates, cysteinyl leukotrienes, glucuronic acid conjugates, bilirubin, estradiol, sulfate conjugates, bile salts, sulfated steroids, GSH, GSSG [82,107,108] MRP2 GSH conjugates, cysteinyl leukotrienes, glucuronic acid conjugates, bilirubin, estradiol, sulfate conjugates, bile salts, sulfated steroids, GSH, GSSG [82,107,109,110] MRP3 GSH conjugates, cysteinyl leukotrienes, glucuronic acid conjugates, bilirubin, estradiol, sulfate conjugates, bile salts [82,107,111] MRP4 GSH conjugates, cysteinyl leukotrienes, glucuronic acid conjugates, estradiol, sulfate conjugates, sulfate conjugates, cyclic nucleotides, bile salts [82,111113] MRP5 GSH conjugates, glucuronic acid conjugates, cyclic nucleotides, GSH [82,111,114] MRP6 GSH conjugates, cysteinyl leukotrienes [82,115] MRP7 GSH conjugates, cysteinyl leukotrienes, glucuronic acid conjugates, estradiol [82,116] MRP8 GSH conjugates, cysteinyl leukotrienes, glucuronic acid conjugates, estradiol, sulfate conjugates, cyclic nucleotides, GSH [82,116] MRP9 Unknown, but not drug conjugates or other organic anions [117] 4.2

A: As a lyophilized peptide in sealed vials from EU stock, shipped quickly across Europe with full tracking