Media type: E-Article Title: Problems in measuring heart rate variability of patients with congestive heart failure Contributor: Myers, Glenn; Workman, Michael; Birkett, Clay; Ferguson, David; Kienzle, Michael Published: Elsevier BV, 1992 Published in: Journal of Electrocardiology, 25 (1992), Seite 214-219 Language: English DOI: 10.1016/0022-0736(92)90105-9 ISSN: 0022-0736 Origination: Footnote: