title: Ethnic-group differences in serum levels of carcinoembryonic antigen.
mesh_terms: D000328:Adult; D000368:Aged; D044383:Black People; D002272:Carcinoembryonic Antigen / Q000302:isolation & purification*; D005260:Female; D006801:Humans; D008131:London; D008297:Male; D008875:Middle Aged; D012737:Sex Factors; D012907:Smoking; D044465:White People
chemical_list: D002272:Carcinoembryonic Antigen