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- [6] DIFFERENTIAL CRITERIA OF ARRHYTHMIAS BY HIGH-FREQUENCY ( ACCELERATION ) DIRECT BODY HEAD-FOOT BALLISTOCARDIOGRAPHY AMERICAN JOURNAL OF CARDIOLOGY, 1964, 13 (01): : 144 - &
- [7] PRINCIPLES OF HIGH-FREQUENCY ( ACCELERATION ) DIRECT BODY HEAD-FOOT BALLISTOCARDIOGRAPHY IN STUDY OF HEART DISEASE AMERICAN JOURNAL OF CARDIOLOGY, 1964, 13 (01): : 144 - &