Do twins carry a high risk for mother and baby?
D000293:Adolescent; D000328:Adult; D002648:Child; D005260:Female; D005313:Fetal Death / Q000209:etiology; D006801:Humans; D007226:Infant Mortality; D007231:Infant, Newborn; D007232:Infant, Newborn, Diseases / Q000209:etiology; D007752:Obstetric Labor, Premature / Q000209:etiology; D011247:Pregnancy; D011248:Pregnancy Complications / Q000209:etiology; D011644:Puerperal Disorders / Q000209:etiology; D014427:Twins