The Arizona high-risk maternal transport system: an initial view.
D000367:Age Factors; D000401:Aircraft; D000552:Ambulances; D001336:Automobiles; D005006:Ethnicity; D005069:Evaluation Studies as Topic; D005260:Female; D005313:Fetal Death; D006801:Humans; D007226:Infant Mortality; D008427:Maternal Health Services; D008722:Methods; D010298:Parity; D011247:Pregnancy; D011248:Pregnancy Complications; D011295:Prenatal Care; D012017:Referral and Consultation; D012306:Risk; D014187:Transportation of Patients