Technology-free predictors of preterm birth in singleton women with threatened preterm labor: a prospective cohort study.Published in:2022By:Najjarzadeha, Maryam;Mohammad-Alizadeh-Charandabi, Sakineh;Abbasalizadeh, Shamsi;Asghari-Jafarabadi, Mohammad;Mirghafourvand, MojganPublication type:journal article