Air leaks as a source of distortion in apexcardiography.
D000388:Air; D004562:Electrocardiography; D004582:Electronics, Medical; D006801:Humans; D007702:Kinetocardiography / Q000295:instrumentation / Q000592:standards*; D008153:Lubrication; D012828:Silicones; D014159:Transducers / Q000592:standards*
D012828:Silicones