title: [Clinical comparison between two sets of fetal electrocardiographs].
authors: J R
authors: JR
authors: Zhou
mesh_terms: D004562:Electrocardiography / Q000295:instrumentation; D005260:Female; D005318:Fetal Heart / Q000502:physiology*; D005323:Fetal Monitoring; D006801:Humans; D011247:Pregnancy