title: Comparison of placentas from two socioeconomic groups. II. Biochemical characteristics.
mesh_terms: D000469:Alkaline Phosphatase / Q000032:analysis; D001724:Birth Weight; D001900:Boston; D002247:Carbon Isotopes; D004247:DNA / Q000032:analysis; D005260:Female; D005347:Fibroblasts; D006166:Guatemala; D006801:Humans; D007930:Leucine / Q000378:metabolism; D008431:Maternal-Fetal Exchange; D010920:Placenta / Q000032:analysis* / Q000166:cytology; D011247:Pregnancy; D014176:Protein Biosynthesis; D011506:Proteins / Q000032:analysis; D012313:RNA / Q000032:analysis; D012270:Ribosomes; D012959:Socioeconomic Factors; D014327:Trophoblasts; D014505:Urban Population
chemical_list: D002247:Carbon Isotopes; D011506:Proteins; D012313:RNA; D004247:DNA; D000469:Alkaline Phosphatase; D007930:Leucine