Maternal cigarette smoking before and during pregnancy and the risk of preterm birth: A dose–response analysis of 25 million mother–infant pairs

• Buyun Liu ,

  Roles Conceptualization, Formal analysis, Funding acquisition, Methodology, Resources, Software, Visualization, Writing – original draft, Writing – review & editing

  * E-mail: wei-bao@uiowa.edu (WB); buyun-liu@uiowa.edu (BL)

  Affiliation Department of Epidemiology, College of Public Health, University of Iowa, Iowa City, Iowa, United States of America

  http://orcid.org/0000-0002-9553-8764

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• Guifeng Xu,

  Roles Writing – review & editing

  Affiliation Department of Epidemiology, College of Public Health, University of Iowa, Iowa City, Iowa, United States of America

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• Yangbo Sun,

  Roles Writing – review & editing

  Affiliation Department of Epidemiology, College of Public Health, University of Iowa, Iowa City, Iowa, United States of America

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• Xiu Qiu,

  Roles Writing – review & editing

  Affiliation Division of Birth Cohort Study, Guangzhou Women and Children’s Medical Center, Guangzhou Medical University, Guangzhou, China

  http://orcid.org/0000-0003-1248-229X

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• Kelli K. Ryckman,

  Roles Writing – review & editing

  Affiliation Department of Epidemiology, College of Public Health, University of Iowa, Iowa City, Iowa, United States of America

  http://orcid.org/0000-0002-9496-4147

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• Yongfu Yu,

  Roles Writing – review & editing

  Affiliations Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles, California, United States of America, Department of Clinical Epidemiology, Aarhus University, Aarhus, Denmark

  http://orcid.org/0000-0003-4208-9480

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• Linda G. Snetselaar,

  Roles Writing – review & editing

  Affiliation Department of Epidemiology, College of Public Health, University of Iowa, Iowa City, Iowa, United States of America

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• Wei Bao

  Roles Conceptualization, Funding acquisition, Methodology, Resources, Supervision, Validation, Writing – review & editing

  * E-mail: wei-bao@uiowa.edu (WB); buyun-liu@uiowa.edu (BL)

  Affiliation Department of Epidemiology, College of Public Health, University of Iowa, Iowa City, Iowa, United States of America

  http://orcid.org/0000-0002-7301-5786

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