Objective: to detect and analyze the clinical risk factors about short-term recurrence of oral squamous cell carcinoma.
目的：探讨口腔癌术后快速复发的临床危险因素。
In the second chapter, we characterize the relations between locations and multiplicities of zeros of a sequence of real-rooted polynomials defined by a three-term recurrence relation.
第二章刻画了一类满足三项递归关系的实零点多项式序列的零点位置和零点重数的关系。
In the second chapter, we characterize the relations between locations and multiplicities of zeros of a sequence of real-rooted polynomials defined by a three-term recurrence relation.
第二章刻画了一类满足三项递归关系的实零点多项式序列的零点位置和零点重数的关系。
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