response to hepatitis b virus ( hbv ) infection [ hbv surface antigen ( hbsag ) and antibody to hbsag ( anti-hbs ) ] , serum iron , total iron-binding capacity , hematological status ( erythrocytes , hb , and hematocrit ) , and evidence of liver damage ( serum glutamic pyruvic transaminase ;
C0019163
hepatitis b
C0019168
hbsag