[Radioimmunoassay, radioreceptor assay and the nude mouse].
D000818:Animals; D004195:Disease Models, Animal; D006801:Humans; D007153:Immunologic Deficiency Syndromes; D008297:Male; D051379:Mice / Q000276:immunology; D009154:Mutation; D009368:Neoplasm Transplantation; D011863:Radioimmunoassay; D011869:Radioligand Assay; D013950:Thymus Gland / Q000002:abnormalities / Q000502:physiology*