title: Analysis of three electrocardiographic systems: conventional, corrected orthogonal (Frank), and uncorrected orthogonal (Trethewie) in newborn.
mesh_terms: D004562:Electrocardiography / Q000379:methods*; D004566:Electrodes; D006321:Heart / Q000502:physiology*; D006801:Humans; D007231:Infant, Newborn