we have synthesized [ 7,7-2h2 ] -19-oha with high deuterium content and , together with [ 7,7-2h2 ] a and [ 9,11-2h2 ] estrone ( e1 ) , have developed a quantitative assay of serum level 19-oha , a , and e1 using the gas chromatography/mass spectrometry-mass fragmentography method to monitor individual subjects throughout pregnancy .
C0014942
estrone
C0032961
pregnancy