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机译:Socioeconomic Status and Receipt of Obstetric Services in Canada.
Perinatal Epidemiology Research Unit, Departments of Obstetrics and Gynaecology and Pediatrics, the Division of Maternal/Fetal Medicine, Department of Obstetrics and Gynaecology, the Division of Neonatal-Perinatal Medicine, Department of Pediatrics,;
Income; Delivery; Canada; Socioeconomic Status; 收入; 接生; 加拿大;