TY - GEN AU - Bernaola-Galván,P AU - Ivanov,P C AU - Nunes Amaral,L A AU - Stanley,H E TI - Scale invariance in the nonstationarity of human heart rate SN - 0031-9007 PY - 2001///1207 KW - Algorithms KW - Astronauts KW - Heart KW - physiology KW - Heart Diseases KW - physiopathology KW - Heart Rate KW - Humans KW - Monte Carlo Method N1 - Publication Type: Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S UR - https://doi.org/10.1103/PhysRevLett.87.168105 ER -