Maternal deaths.
D000032:Abortion, Therapeutic / Q000401:mortality; D000367:Age Factors; D005260:Female; D006801:Humans; D008428:Maternal Mortality; D011225:Pre-Eclampsia / Q000401:mortality; D011247:Pregnancy; D011248:Pregnancy Complications / Q000401:mortality; D011655:Pulmonary Embolism / Q000401:mortality; D006113:United Kingdom