title: Maternal metabolic response to twin pregnancy in primigravidae.
mesh_terms: D000293:Adolescent; D000328:Adult; D001798:Blood Proteins / Q000032:analysis*; D001826:Body Fluids; D001835:Body Weight; D002712:Chlorides / Q000097:blood; D004912:Erythrocytes; D004964:Estriol / Q000652:urine*; D005260:Female; D006400:Hematocrit; D006801:Humans; D009994:Osmolar Concentration; D010298:Parity; D010953:Plasma Volume; D011188:Potassium / Q000097:blood; D011247:Pregnancy; D012964:Sodium / Q000097:blood; D013053:Spectrophotometry; D014427:Twins; D014867:Water
chemical_list: D001798:Blood Proteins; D002712:Chlorides; D014867:Water; D012964:Sodium; D004964:Estriol; D011188:Potassium