Epidemiology of Preterm Delivery in Two Birth Cohorts with an Interval of 20 Years

Journal Article Epidemiology of Preterm Delivery in Two Birth Cohorts with an Interval of 20 Years Get access Päivi Olsén, Päivi Olsén 1Department of Public Health Science and General Practice, University of OuluOulu, Finland Reprint requests to Dr. Päivi Olsén, Department of Public Health Science and General Practice, University of Oulu, Aapistie 1, 90220 Oulu, Finland Search for other works by this author on: Oxford Academic PubMed Google Scholar Esa Läärä, Esa Läärä 1Department of Public Health Science and General Practice, University of OuluOulu, Finland Search for other works by this author on: Oxford Academic PubMed Google Scholar Paula Rantakallio, Paula Rantakallio 1Department of Public Health Science and General Practice, University of OuluOulu, Finland Search for other works by this author on: Oxford Academic PubMed Google Scholar Marjo-Riitta Järvelin, Marjo-Riitta Järvelin 1Department of Public Health Science and General Practice, University of OuluOulu, Finland Search for other works by this author on: Oxford Academic PubMed Google Scholar Ari Sarpola, Ari Sarpola 1Department of Public Health Science and General Practice, University of OuluOulu, Finland Search for other works by this author on: Oxford Academic PubMed Google Scholar Anna-Liisa Hartikainen Anna-Liisa Hartikainen 2Department of Obstetrics and Gynecology, University Central HospitalOulu, Finland Search for other works by this author on: Oxford Academic PubMed Google Scholar American Journal of Epidemiology, Volume 142, Issue 11, 1 December 1995, Pages 1184–1193, https://doi.org/10.1093/oxfordjournals.aje.a117577 Published: 01 December 1995 Article history Received: 13 October 1994 Revision received: 09 August 1995 Published: 01 December 1995