ADIF

Objective To explore the advantage of dyspnea differentiation index ( DDI ) for separation of cardiac vs pulmonary dyspnea.

目的　探讨气急鉴别指数 ( dyspneadifferentiationindex, DDI ) 判别肺源性呼吸困难与心源性呼吸困难的优越性.

On ADIF method and its related problems

ADIF迭代法及其有关问题

The array_diff() function compares the two arrays and notes which elements are not terminated, putting the contents in the array$ adif.

array diff（）函数比较这两个数组并标注出哪些元素没有结束符，将内容放入数组$adif。