Letter: effective thyroxine ratio in infants, children, and adolescents.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D001769:Blood; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D013974:Thyroxine / Q000097:blood*; D013975:Thyroxine-Binding Proteins / Q000097:blood; D014470:Umbilical Cord
D013975:Thyroxine-Binding Proteins; D013974:Thyroxine