Levels of progesterone in systemic plasma during the first trimester of human pregnancy.
D001769:Blood; D005260:Female; D006801:Humans; D011247:Pregnancy / Q000097:blood; D011261:Pregnancy Trimester, First; D011374:Progesterone / Q000097:blood*
D011374:Progesterone
BLOOD; PREGNANCY/blood in; PROGESTERONE/in blood