About the Authors

Marijke M. Faas

m.m.faas@umcg.nl

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

Alina Kunnen

Affiliations Department of Periodontology, Center for Dentistry and Oral Hygiene, University Medical Center Groningen and University of Groningen, Groningen, The Netherlands, School of Health Care Studies, Hanze University of Applied Sciences Groningen, Groningen, The Netherlands

Daphne C. Dekker

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

Hermie J. M. Harmsen

Affiliation Department of Medical Microbiology, University Medical Center Groningen and University of Groningen, Groningen, The Netherlands

Jan G. Aarnoudse

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

Frank Abbas

Affiliation Department of Periodontology, Center for Dentistry and Oral Hygiene, University Medical Center Groningen and University of Groningen, Groningen, The Netherlands

Paul De Vos

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

Maria G. Van Pampus

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

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: MF AK DD MP HH. Performed the experiments: DD AK. Analyzed the data: MF AK DD PV MP HH. Contributed reagents/materials/analysis tools: HH MP JA FA. Wrote the paper: MF PV MP JA FA AK DD HH.