prior to the application of the prostaglandin and immediately before the surgical intervention a sonographic examination for determining the vitality of the pregnancy was carried out. -- plasma progesteron , estradiol and hpl levels were determined radioimmunologically prior to the application of prostaglandin , at four-hour intervals on the day of intervention , and 24 , 48 and 72 hours after the intervention .
C0032961
pregnancy
C0014912
estradiol