TY - RPRT TI - Wide frequency range force ballistocardiogram; its correlation with cardiovascular dynamics. AU - T J REEVES AU - L L HEFNER AU - W B JONES AU - J E SPARKS PY - 1957 DO - 10.1161/01.cir.16.1.43 UR - https://pubmed.ncbi.nlm.nih.gov/13447149/ ID - 13447149 ER -