However, the relativeincidence of cancers is changing with time.
然而，癌症的相对发病率是随时间而变化的。
2
Objective to sum up and analyze the implantation of permanent cardiac pacemaker so as to reduce the relativeincidence of complications and raise the pacemaker's efficiency.
目的总结和分析永久心脏起搏器植入情况，旨在减少相关并发症，提高起搏器功效。
3
Background Relative to dislocations, glenohumeral subluxation events have received little attention in the literature, despite a high incidence in young athletes.