种属关系
发表于 2025-3-26 21:46:36
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抱狗不敢前
发表于 2025-3-27 01:46:28
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CULP
发表于 2025-3-27 07:06:13
https://doi.org/10.1007/978-3-319-31462-4, which is a useful method for diagnosis of not only the presence of myxoma but also the characteristics of myxoma. Characteristics of the myxoma would include its size, the site of attachment and it is prolapsing or not. However, the hemodynamic alteration of left ventricular (LV) filling where
Prostaglandins
发表于 2025-3-27 13:30:34
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生意行为
发表于 2025-3-27 16:44:31
Overview: 978-94-010-8383-6978-94-009-4241-7
睨视
发表于 2025-3-27 20:47:38
https://doi.org/10.1007/978-3-030-96603-4umed to be flat . The recorded velocities will then represent the spatial mean velocity, and the stroke volume is obtained as the product of the integral of the velocity curve and the cross sectional area of the aorta at the same level.
混杂人
发表于 2025-3-27 23:07:14
Nonlinear Waves in Circular Basinsvalve . Although the pressure gradient is a practically useful parameter to evaluate the severity of stenotic valve lesions, it essentially depends on flow rate. For a given stenotic orifice, it may vary with the changes in the hemodynamic state of the heart, and not be simply regarded as an absolute measure of the obstruction.
IRATE
发表于 2025-3-28 03:43:34
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镇压
发表于 2025-3-28 08:21:42
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SPECT
发表于 2025-3-28 13:40:42
Nonlinear Vibration with ControlUp to late seventies the essentially only method of Doppler frequency measurement was the counting of zero crossings (ZCC) of Doppler signal. The response of the ZCC to the signal is in direct proportion to the second moment of the spectrum of the measured signal.