four men with metastatic carcinoma ( two bronchus , one stomach , one primary unknown ) and ectopic placental protein production ( one chorionic gonadotropin ( hcg and its alpha subunit ; one placental lactogen ( hpl ) ; one hcg alone ; one hcg and hpl ) were studied with serial retrospective measurements of the ectopic protein concentrations in serum , correlated with objective assessment of clinical status .
C0018062
chorionic gonadotropin
C0017963
alpha subunit