By the turn of the century, Pittsburgh had the highest death rate in the United States. 至世纪之交时,匹兹堡的死亡率(DR)居全美之首。
Conclusion : Diagnosis and treatment at earliest can decrease the incidence of placental abruption and death rate of perinatal. 结论:对病因进行早期诊断和治疗,可以降低胎盘早剥的发生率和围产儿死亡率(DR)。
Methods The death rate and constituent ratio index were applied. 方法应用死亡率(DR)和构成比指标。
The reason that it causes the high death rate lies in the wide invasion and metastasis. 胃癌死亡率(DR)居高不下的原因主要在于广泛的侵袭和转移。
Can we eliminate cancer so as to reduce death rate? 我们能消灭癌症以减少死亡率(DR)吗?