The isolation of a ketonic dihydroxy Kober chromogen from the urine of pregnant women.
D009282:Naphthalenesulfonates; D011247:Pregnancy / Q000652:urine; D013256:Steroids / Q000652:urine*
D009282:Naphthalenesulfonates; D013256:Steroids; C006671:azo rubin S
PREGNANCY/urine in; STEROIDS/in urine