title: Changes in maternal body composition resulting from twin pregnancies.
mesh_terms: D001798:Blood Proteins / Q000032:analysis; D001810:Blood Volume; D001823:Body Composition; D001835:Body Weight; D004964:Estriol / Q000652:urine; D005260:Female; D006801:Humans; D011247:Pregnancy; D011272:Pregnancy, Multiple
chemical_list: D001798:Blood Proteins; D004964:Estriol