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Keep this study
Lead
National Institute of Environmental Health Sciences (NIEHS)
Daily first morning urine specimens were collected throughout the first 8-9 weeks of 151 clinical pregnancies. These specimens are now approximately 20 years in storage, and the stability of markers of placental and corpus luteum function are not known. We will collect new urine specimens for 20 pregnancies to serve as a reference to evaluate the quality of those stored samples.
Age
25–35
Sex
FEMALE
Healthy volunteers
Not accepted
You may not be if
We will recruit from the pre-pregnancy participants in the Right From the Start UNC study entitled, Consequences and Course of Uterine Fibroid in Pregnancies.
The women will be selected to be similar to the majority of women in the NC-EPS because we need to have a comparable sample of women in order to best compare hormone levels.
Entry requirements will be:
white (including Hispanic and latino), age 25-35, regular menstrual cycles, nonsmoker (i.e., no smoking in past year), no major chronic disease, no known fertility problems, no more than 3 months of trying for this current pregnancy.
