Guidelines for the management of spontaneous preterm labor: identification of spontaneous preterm labor, diagnosis of preterm premature rupture of membranes, and preventive tools for preterm birth

Department of Obstetrics and Gynecology, University of Perugia, Perugia, Italy, Department of Obstetrics and Gynecology, Hospital Vall D’Hebron, Barcelona, Spain, Mother–Infant Department, School of Midwifery, University of Modena and Reggio Emilia, Italy, Department of Obstetrics and Gynecology, University of Athens, Greece, Department of Perinatology and Gynecology, Poznan University of Medical Sciences, Poznan, Poland, Hospital Clı́nic-IDIBAPS, University of Barcelona, and CIBER-ER, Barcelona, Spain, Department of Obstetrics and Gynecology, University of Vienna, Austria, Perinatology Research Branch/NICHD/NIH/DHHS, Division of Maternal–Fetal Medicine, Department of Obstetrics and Gynecology, Wayne State University, Detroit, USA, Division of Surgery, Northwick Park Institute of Medical Research, Harrow, London, Department of Obstetrics and Gynecology, 1st Maternity Hospital, State University of St. Petersburg, Russia, Department of Obstetrics & Gynecology, University Hospital S. João, Porto, Portugal, Institute of Obstetrics and Gynecology, University of Belgrade, Serbia, The National Maternity Hospital, Dublin, Ireland, Institute of Cellular Medicine, University of Newcastle, UK, Department of Perinatal Medicine, Istanbul University, Istanbu, Turkey, St. Thomas Hospital, Kings College London, UK, Department of Obstetrics & Gynecology, University of Cluj-Napoca, Romania, and Department of Obstetrics & Gynecology, University René Descartes, Paris, France