About the Authors

Annemiek M. Roescher

a.m.roescher@umcg.nl

Affiliation Division of Neonatology, Beatrix Children's Hospital, University of Groningen, University Medical Center, Groningen, the Netherlands

Albert Timmer

Affiliation Department of Pathology and Medical Biology, University of Groningen, University Medical Center, Groningen, the Netherlands

Jan Jaap H. M. Erwich

Affiliation Department of Obstetrics and Gynecology, University of Groningen, University Medical Center, Groningen, the Netherlands

Arend F. Bos

Affiliation Division of Neonatology, Beatrix Children's Hospital, University of Groningen, University Medical Center, Groningen, the Netherlands

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Wrote the paper: AMR. Designed the structure of the manuscript: AMR AT JJHME AFB. Literature search: AMR AFB. Drafted the initial manuscript: AMR. Drafted the ‘placental pathology’ section: AT. Reviewed and revised initial manuscript: AT JJHME AFB. Approved the final manuscript as submitted: AMR AT JJHME AFB.