title: A trial of three methods for plasma beta-endorphin assay in women at delivery and in healthy non pregnant women.
mesh_terms: D000328:Adult; D002498:Centrifugation; D004723:Endorphins / Q000097:blood*; D005260:Female; D006801:Humans; D007202:Indicators and Reagents; D007231:Infant, Newborn; D007743:Labor, Obstetric; D008423:Maternal Age; D011247:Pregnancy; D011863:Radioimmunoassay; D001615:beta-Endorphin
chemical_list: D004723:Endorphins; D007202:Indicators and Reagents; D001615:beta-Endorphin