1. 13 Be sure to ventilate on the upstroke.

2. Transmembrane resting potentials, upstroke velocities and amplitudes of action potentials remained unchanged.

3. The morphological lower and upper side of the wings represent the aerodynamical pressure side during the downstroke and upstroke respectively.

4. Artery and Arterialized waveforms in the outflow vein, respectively.2 In the arteries proximal to the AVG, there is a sharp systolic upstroke, and the peak systolic velocity is normal or even increased