the stability of human chorionic gonadotropin ( hcg ) and its alpha-subunit in whole blood , plasma , and serum under a variety of sample handling conditions commonly encountered in clinics , hospital wards , physician 's offices , and clinical service laboratories was investigated with the use of radioreceptor assay , radioimmunoassays , as well as hormone integrity determinations .
C0018062
human chorionic gonadotropin
C0017963
alpha-subunit