In some circles, indeed, an ulcer was the badge of a hard-working executive: perhaps not as definitive proof of dedication to the job as a heart attack, but a lot less lethal.

的确，在某些领域，溃疡病是勤勉工作的行政人员的标记，也许并不像心脏病那样被认为是敬业的确证，只是致命率要低得多。

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Down-regulated activity and absolute or relative absence of growth factors and their receptors in diabetic foot ulcer is the pathophysiologic basis of wound hard to heal.

溃疡创面局部生长因子及受体活性下降和数量的绝对或相对缺乏是其难以愈合的病理生理基础。

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