Bestemmelse af shed antigen i serumprøver ved baseline viste, at 64% (286/ 447) af patienterne havde detekterbar shed antigen helt op til 1880 ng/ ml (median = 11 ng/ ml).
Determination of shed antigen in baseline serum samples revealed that 64% (286/ 447) of patients had detectable shed antigen, which ranged as high as 1880 ng/ ml (median = 11 ng/ ml).