specimens from patients with thyrotoxicosis displayed a decrease in the thyroxine ( t ( 4 ) ) -binding capacities of t ( 4 ) -binding globulin ( tbg ) and t ( 4 ) -binding prealbumin ( tbpa ) , an increase in serum protein-bound iodine ( pbi ) , and an increase in both the proportion and absolute concentration of free t ( 4 ) .
C0040156
thyrotoxicosis
C0040165
thyroxine