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CJCP  2021, Vol. 23 Issue (12): 1242-1249    DOI: 10.7499/j.issn.1008-8830.2108015
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Risk factors for preterm birth: a prospective cohort study
YE Chang-Xiang, CHEN Sheng-Bao, WANG Ting-Ting, ZHANG Sen-Mao, QIN Jia-Bi, CHEN Li-Zhang
Department of Epidemiology and Medical Statistic, Xiangya School of Public Health, Central South University, Changsha 410078, China
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