title: What do you consider the beginning of first stage? Why?
authors.forename: L J
authors.initials: LJ
authors.lastname: Rosenberger
authors.forename: J
authors.initials: J
authors.lastname: Cohen
mesh_terms: D005260:Female; D006801:Humans; D007747:Labor Stage, First; D009721:Nurse Midwives; D009730:Nursing Assessment; D011247:Pregnancy