title: Nitrogen retention, total body  40 K and weight gain in teenage pregnant girls.
mesh_terms: D000293:Adolescent; D000328:Adult; D001724:Birth Weight; D001798:Blood Proteins / Q000378:metabolism; D001806:Blood Urea Nitrogen; D001835:Body Weight; D003404:Creatinine / Q000652:urine; D004032:Diet; D005243:Feces / Q000032:analysis; D005260:Female; D006400:Hematocrit; D006454:Hemoglobins / Q000378:metabolism; D006801:Humans; D007231:Infant, Newborn; D008431:Maternal-Fetal Exchange; D009584:Nitrogen / Q000378:metabolism* / Q000652:urine; D009747:Nutritional Physiological Phenomena; D010920:Placenta / Q000378:metabolism; D011188:Potassium / Q000378:metabolism*; D011194:Potassium Isotopes; D011247:Pregnancy; D012709:Serum Albumin / Q000378:metabolism; D012867:Skin / Q000378:metabolism
chemical_list: D001798:Blood Proteins; D006454:Hemoglobins; D011194:Potassium Isotopes; D012709:Serum Albumin; D003404:Creatinine; D009584:Nitrogen; D011188:Potassium