title: Effects of nutrition and other factors on pregnant women's serum vitamin A levels.
mesh_terms: D000704:Analysis of Variance; D002338:Carotenoids / Q000097:blood; D005260:Female; D006801:Humans; D007743:Labor, Obstetric; D007774:Lactation; D008423:Maternal Age; D010298:Parity; D049590:Postpartum Period; D011247:Pregnancy; D011261:Pregnancy Trimester, First; D011262:Pregnancy Trimester, Second; D011263:Pregnancy Trimester, Third; D012621:Seasons; D012737:Sex Factors; D012923:Social Class; D014427:Twins; D014801:Vitamin A / Q000097:blood*; D014815:Vitamins / Q000627:therapeutic use
chemical_list: D014815:Vitamins; D014801:Vitamin A; D002338:Carotenoids