title: Growth retardation in twins.
mesh_terms: D005260:Female; D005317:Fetal Growth Retardation / Q000175:diagnosis*; D005333:Fetus / Q000502:physiology; D006801:Humans; D010928:Placental Lactogen / Q000032:analysis; D011247:Pregnancy; D014427:Twins
chemical_list: D010928:Placental Lactogen