Mackenzie's polygraph for simultaneous recordings of venous and arterial pulse [proceedings].
D001158:Arteries / Q000502:physiology; D006334:Heart Function Tests / Q000295:instrumentation*; D049672:History, 19th Century; D049673:History, 20th Century; D010827:Physiology / Q000266:history*; D011674:Pulse; D006113:United Kingdom; D014680:Veins / Q000502:physiology