title: Plasma opioids in the first hours of life.
mesh_terms: D004723:Endorphins / Q000097:blood*; D005312:Fetal Blood / Q000032:analysis; D006801:Humans; D007231:Infant, Newborn; D013997:Time Factors; D001615:beta-Endorphin; D008083:beta-Lipotropin / Q000097:blood*
chemical_list: D004723:Endorphins; D001615:beta-Endorphin; D008083:beta-Lipotropin