首页 | 官方网站   微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   81901篇
  免费   44873篇
  国内免费   34篇
医药卫生   126808篇
  2023年   116篇
  2022年   79篇
  2021年   1559篇
  2020年   5219篇
  2019年   11050篇
  2018年   10317篇
  2017年   11624篇
  2016年   12309篇
  2015年   12153篇
  2014年   12149篇
  2013年   12752篇
  2012年   4769篇
  2011年   4733篇
  2010年   9318篇
  2009年   5645篇
  2008年   2559篇
  2007年   1530篇
  2006年   1438篇
  2005年   1187篇
  2004年   1173篇
  2003年   1152篇
  2002年   1201篇
  2001年   790篇
  2000年   723篇
  1999年   309篇
  1998年   112篇
  1997年   87篇
  1996年   71篇
  1995年   79篇
  1994年   60篇
  1993年   54篇
  1992年   40篇
  1991年   36篇
  1990年   31篇
  1989年   27篇
  1988年   22篇
  1987年   25篇
  1986年   17篇
  1985年   35篇
  1984年   21篇
  1983年   22篇
  1982年   29篇
  1981年   23篇
  1980年   18篇
  1979年   17篇
  1978年   22篇
  1977年   19篇
  1976年   12篇
  1975年   9篇
  1973年   9篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
11.
12.
13.
14.
15.
16.
Purpose: Family psychosocial risk in pediatric oncology can be assessed using the Psychosocial Assessment Tool (PAT), a brief parent report screener based on the Pediatric Psychosocial Preventative Health Model (PPPHM; universal, targeted, and clinical). However, little is known about risk over the course of treatment and its association with medical and psychosocial healthcare utilization. Methods: Primary caregivers of children with cancer participated in this prospective multisite investigation, completing the PAT at diagnosis (T1; n = 396) and 6 months later (T2; n = 304). Healthcare utilization data were extracted from electronic health records. Results: The distribution of PPPHM risk levels at T1 and T2 was highly consistent for the samples. Two‐thirds of families remained at the same level of risk, 18% decreased and 16% increased risk level. Risk was not related to sociodemographic or treatment variables. The PAT risk score correlated with psychosocial contacts over the 6‐month period. Conclusions: Although the majority of families reported universal (low) risk on the PAT and were stable in their risk level over 6 months, reassessing risk is helpful in identifying those families who report higher level of risk during treatment than at diagnosis. PAT scores were related to psychosocial services that are provided to most but not all families and could be tailored more specifically to match risk and delivery of evidence‐based care.  相似文献   
17.

Background and objectives

A prompt and effective management of trauma patient is necessary. The aim of this case report is to highlight the importance of intraoperative echocardiography as a useful tool in patients suffering from refractory hemodynamic instability no otherwise explained.

Case report

A 41 year‐old woman suffered a car accident. At the emergency department, no abnormalities were found in ECG or chest X‐ray. Abdominal ultrasound revealed the presence of abdominal free liquid and the patient was submitted to urgent exploratory laparotomy. Nevertheless, she persisted suffering arterial hypotension and metabolic acidosis. Looking for the reason of her hemodynamic instability, intraoperative transthoracic echocardiography was performed, finding out the presence of pericardial effusion. Once the cardiac surgeon extracted pericardial clots, patient's situation improved clinically and analytically.

Conclusion

Every anesthesiologist should be able to use the intraoperative echocardiography as an effective tool in order to establish the appropriate measures to promote the survival of patients suffering severe trauma.  相似文献   
18.
19.
20.
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司    京ICP备09084417号-23

京公网安备 11010802026262号