Simula, S H <br/><br/>
Analogue and digital electrocardiogram recordings in the assessment of heart rate variability.  [electronic resource] 

 -  Clinical physiology (Oxford, England)  Mar 1998 
 - 157-66 p.  digital 
<br/><br/> Publication Type: Comparative Study; Journal Article 
<br/><br/><label>ISSN: </label>0144-5979 
<br/><br/><label>Standard No.: </label>10.1046/j.1365-2281.1998.00089.x  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Aged<br/>Analog-Digital Conversion<br/>Autonomic Nervous System--physiology<br/>Coronary Disease--diagnosis<br/>Electrocardiography, Ambulatory--instrumentation<br/>Female<br/>Heart Rate--physiology<br/>Humans<br/>Male<br/>Middle Aged<br/>Reproducibility of Results<br/>Risk Assessment<br/>Time Factors