The isolation of a sixth Kober chromogen from the urine of pregnant women and its provisional identification as 18-hydroxyoestrone.
D001826:Body Fluids; D004967:Estrogens / Q000652:urine*; D005260:Female; D006801:Humans; D006894:Hydroxyestrones; D009282:Naphthalenesulfonates; D011247:Pregnancy / Q000652:urine
D004967:Estrogens; D006894:Hydroxyestrones; D009282:Naphthalenesulfonates; C006671:azo rubin S
ESTROGENS/in urine; PREGNANCY/urine in