Labelled phospholipid spheres for organ visualization

Labelled resiniferatoxin, compositions thereof, and methods for

Labelled vitamin D.sub.3 derivative and production process there

Labelling of hormones with rhenium and tecnetium

Layered mixed metal hydroxides for the stabilization of radioact

Lead-203 as a label for radioimaging

Leukostimulatory agent for in vivo leukocyte tagging

Ligand compositions and processes for their manufacture and thei

Ligands and cationic complexes thereof with technetium-99m

Ligands and metal complexes thereof

Ligands for &agr;-7 nicotinic acetylcholine receptors based...

Ligands for improving metal chelate formation kinetics

Ligands for MRI contrast agent

Ligands to radiation-induced molecules

Ligands useful in radiographic imaging

Lipid assay based on aggregating properties

Lipid matrix carriers for use in drug delivery systems

Lipid membrane drug delivery

Lipid soluble radioactive metal chelates for tumor therapy

Lipid vesicles bearing carbohydrate surfaces as lymphatic direct