Risk of preterm birth in relation to history of preterm birth: a population-based registry study of 213 335 women in Norway.
Tiril TingleffÅse VikanesSari RaisanenL SandvikG MurzakanovaKatariina LainePublished in: BJOG : an international journal of obstetrics and gynaecology (2021)
Preterm first birth is a major risk factor for subsequent preterm birth, regardless of maternal, obstetric or fetal risk factors.