title: Embryonic heart rates.
authors.affiliation: Associate Professor & Diagnostic Medical Sonography, Program Director, University of Arkansas for Medical Sciences, CHRP, Little Rock, Arkansas.
authors.forename: Terry J
authors.initials: TJ
authors.lastname: DuBose
mesh_terms: D049628:Body Size; D004622:Embryo, Mammalian / Q000502:physiology; D047108:Embryonic Development / Q000502:physiology; D005260:Female; D005865:Gestational Age; D006340:Heart Rate, Fetal / Q000502:physiology*; D006801:Humans; D011247:Pregnancy; D012044:Regression Analysis