1. New method for assessing cardiac parasympathetic activity using 24 hour electrocardiograms. Issue 4 (October 1984) Authors: Ewing, D J; Neilson, J M; Travis, P Journal: Heart Issue: Volume 52:Issue 4(1984) Page Start: 396 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗
2. Sudden large and periodic changes in heart rate in healthy young men after short periods of exercise. Issue 6349 (23rd October 1982) Authors: Jennett, S; Lamb, J F; Travis, P Journal: BMJ Issue: Volume 285:Issue 6349(1982) Page Start: 1154 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗