title: Stochastic characteristics of the cardiac rhythm of the intrauterine fetus at different stages of pregnancy.
mesh_terms: D004562:Electrocardiography; D005260:Female; D005318:Fetal Heart / Q000502:physiology*; D005865:Gestational Age; D006339:Heart Rate; D006801:Humans; D008955:Models, Cardiovascular; D011247:Pregnancy; D013269:Stochastic Processes