Radioimmunoassay of thyroxine in dried blood spots.
D006801:Humans; D007037:Hypothyroidism / Q000097:blood* / Q000175:diagnosis; D007231:Infant, Newborn; D007232:Infant, Newborn, Diseases / Q000097:blood* / Q000175:diagnosis; D011863:Radioimmunoassay; D013974:Thyroxine / Q000097:blood*
D013974:Thyroxine