title: Anatomical level of X and Z electrodes in the Frank VCG lead system.
mesh_terms: D000293:Adolescent; D000328:Adult; D001830:Body Surface Area; D003201:Computers; D004566:Electrodes; D005069:Evaluation Studies as Topic; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D008722:Methods; D008875:Middle Aged; D008962:Models, Theoretical; D013909:Thorax / Q000033:anatomy & histology; D014672:Vectorcardiography