title: Plasma precursors of estrogen. II. Correlation of the extent of conversion of plasma androstenedione to estrone with age.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000375:Aging; D000735:Androstenedione / Q000378:metabolism* / Q000652:urine; D002250:Carbon Radioisotopes; D002648:Child; D004958:Estradiol / Q000652:urine; D004964:Estriol / Q000652:urine; D004970:Estrone / Q000378:metabolism* / Q000652:urine; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012044:Regression Analysis; D014316:Tritium
chemical_list: D002250:Carbon Radioisotopes; D014316:Tritium; D004970:Estrone; D000735:Androstenedione; D004958:Estradiol; D004964:Estriol