作者: Arturo Cervantes , Louis Keith , Grace Wyshak
关键词: Pregnancy 、 Medicine 、 Birth rate 、 Odds ratio 、 Premature birth 、 Ethnic group 、 Birth weight 、 Low birth weight 、 Population 、 Demography
摘要: Objectives: For almost two decades, the literature has consistently described an epidemiologic paradox relating to better birth outcomes among high-risk groups, particularly …