Objective: To evaluate the efficiency of an implanted chip system on blood pressure regulation.
目的:评价植入式芯片系统调控血压的效果。
ObjectiveTo evaluate the efficiency of heparin on the ratio of peak systolic to least diastolic flow velocity (S/D) of umbilical artery flow velocity waveforms at second-trimester pregnancies.
目的评价肝素对改善妊娠中晚期脐动脉收缩期最大血流速度(S)与舒张末期血流速度(D)的比值异常的临床效果。
Objective: to evaluate the effects of breathing pattern and respiratory efficiency on exercise capacity in patients with chronic obstructive pulmonary disease (COPD).
目的:探讨慢性阻塞性肺疾病(COPD)运动中呼吸模式和通气效率的变化情况及其对运动耐力的影响。
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