Instantaneous changes in the heart rate variability during head-up tilt revealed by positive time-frequency distribution
Keyword(s):
1997 ◽
Vol 19
(6)
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pp. 581-587
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Keyword(s):
1985 ◽
Vol 32
(9)
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pp. 770
1985 ◽
Vol 33
(1)
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pp. 31-38
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1996 ◽
Vol 27
(2)
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pp. 399