1. As the duration of recumbency prior to tilting and angle of the tilt are not standardized, they ary considerably. 因为倾斜前的仰卧时间和倾斜角度的非标准化，试验结果变化较大。
2. As the duration of recumbency prior to tilting and angle of the tilt are not standardized, they vary considerably. 因为倾斜前的仰卧时间和倾斜角度的非标准化，试验结果变化较大。
3. Unfortunately, the scriptures of Buddhism did not explain why the prone position was the position for the hungry ghosts, and why the prone position should not be adopted during recumbency. 但是佛教经典并未进一步解释「饿鬼卧」的命名由来，与为何不宜采用饿鬼卧的理由。
