IS SEPARATION OF OB CASES NECESSARY?
D005260:Female; D006739:Hospital Administration; D006801:Humans; D008428:Maternal Mortality; D009774:Obstetrics; D011247:Pregnancy; D035583:Rare Diseases; D012163:Retinal Detachment; D014481:United States
HOSPITAL ADMINISTRATION; MATERNAL MORTALITY; OBSTETRICS; UNITED STATES