title: Variations in the pattern of maternal serum vitamin A and carotenoids during human reproduction.
mesh_terms: D001769:Blood; D002338:Carotenoids / Q000097:blood*; D005006:Ethnicity; D005260:Female; D012739:Gonadal Steroid Hormones / Q000502:physiology; D006801:Humans; D007743:Labor, Obstetric; D007774:Lactation; D008297:Male; D008431:Maternal-Fetal Exchange; D009747:Nutritional Physiological Phenomena; D049590:Postpartum Period; D011247:Pregnancy; D012737:Sex Factors; D013997:Time Factors; D014427:Twins; D014471:Umbilical Veins; D014801:Vitamin A / Q000097:blood*; D014815:Vitamins / Q000494:pharmacology / Q000627:therapeutic use
chemical_list: D012739:Gonadal Steroid Hormones; D014815:Vitamins; D014801:Vitamin A; D002338:Carotenoids