title: Thymus and node labelling by intramediastinal injection of tritiated tracers and its bearing on present concepts of lymphocyte cytokinetics.
mesh_terms: D000818:Animals; D007267:Injections; D008214:Lymphocytes; D008297:Male; D008482:Mediastinum; D008722:Methods; D011865:Radioisotope Dilution Technique; D011877:Radionuclide Imaging; D051381:Rats; D013936:Thymidine; D013950:Thymus Gland; D014316:Tritium
chemical_list: D014316:Tritium; D013936:Thymidine