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   8984篇
  免费   798篇
  国内免费   22篇
医药卫生   9804篇
  2021年   122篇
  2020年   98篇
  2019年   143篇
  2018年   154篇
  2017年   118篇
  2016年   132篇
  2015年   136篇
  2014年   189篇
  2013年   294篇
  2012年   436篇
  2011年   401篇
  2010年   278篇
  2009年   210篇
  2008年   414篇
  2007年   380篇
  2006年   384篇
  2005年   370篇
  2004年   339篇
  2003年   353篇
  2002年   323篇
  2001年   283篇
  2000年   280篇
  1999年   239篇
  1998年   113篇
  1997年   95篇
  1996年   73篇
  1995年   99篇
  1994年   78篇
  1993年   73篇
  1992年   181篇
  1991年   215篇
  1990年   157篇
  1989年   199篇
  1988年   213篇
  1987年   253篇
  1986年   199篇
  1985年   232篇
  1984年   139篇
  1983年   94篇
  1982年   76篇
  1981年   77篇
  1980年   66篇
  1979年   105篇
  1978年   106篇
  1977年   89篇
  1976年   64篇
  1975年   73篇
  1974年   77篇
  1973年   72篇
  1972年   72篇
排序方式: 共有9804条查询结果,搜索用时 156 毫秒
1.
2.
Ableist attitudes and structures are increasingly recognized across all sectors of health care delivery. After Dobbs, novel questions arose in the United States concerning how to protect reproductive autonomy while avoiding discrimination against and devaluation of disabled persons. In this essay, we examine the Louisiana Department of Health's emergency declaration, “List of Conditions That Shall Deem an Unborn Child ‘Medically Futile,’” issued August 1, 2022. We raise a number of medical, ethical, and public health concerns that lead us to argue that the declaration should be rescinded. Analysis of this ethically objectionable declaration provides valuable lessons about how to uphold both reproductive and disability justice in a post-Dobbs landscape.  相似文献   
3.
Objective: The purpose was to describe the prevalence and characteristics of healthcare utilization among individuals with spinal cord injury (SCI) from a Level I trauma center.

Design: Retrospective data analysis utilizing a local acute trauma registry for initial hospitalization and merged with the Dallas-Fort Worth Hospital Council registry to obtain subsequent health care utilization in the first post-injury year.

Setting: Dallas, TX, USA.

Participants: Six hundred and sixty four patients were admitted with an acute traumatic SCI from January 2003 through June 2014 to a Level I trauma center. Fifty five patients that expired during initial hospitalization and 18 patients with unspecified SCI (defined by ICD-9 with no etiology or level of injury specified) were not included in the analysis, leaving a final sample of 591.

Outcome Measures: Data included demographic and clinical characteristics, charges, and healthcare utilization.

Results: Mean age was 46.1?years (±18.9?years), the majority of patients were male (74%), and Caucasian (58%). Of the 591 patients, 345 (58%) had additional inpatient or emergency healthcare utilization accounting for 769 additional visits (median of 3 visits per person). Of the 769 encounters, 534 (69%) were inpatient and 235 (31%) were emergency visits not resulting in an admission. The most prevalent ICD-9 codes listed were pressure ulcer, neurogenic bowel, neurogenic bladder, urinary tract infection, fluid electrolyte imbalance, hypertension, and tobacco use.

Conclusion: Individuals with SCI experience high levels of healthcare utilization which are costly and may be preventable. Increasing our understanding of the prevalence and causes for healthcare utilization after acute SCI is important to target preventive strategies.  相似文献   

4.
The incidence of type 1 diabetes (T1D) and its associated risks of chronic kidney disease or end‐stage renal disease development are on the rise. T1D is an autoimmune disease in which insulin‐producing beta cells are destroyed. Increased incidence of T1D has been suggested to be a result of environmental factors such as exposure to polycyclic aromatic hydrocarbons (PAHs). 2‐aminoanthracene (2AA) is a PAH that has been associated with the onset of early diabetic symptoms. This study was conducted to assess if 2AA dietary ingestion would induce T1D renal injuries. To accomplish study goals, Sprague‐Dawley rats were assigned into three 2AA dietary (0, 50, and 100 mg/kg‐2AA) ingestion groups for 12 weeks. Animals were evaluated for various morphometric indices, clinical markers, and gene expression. The rats in the 100 mg/kg group lost 5% less weight than the other treatment groups and converted roughly 3% more of their food intake into body mass. Renal histopathology indicated no significant difference between groups. The kidney weight per bodyweight of the 100 mg/kg treatment group was 30.1% greater than the control group. Creatinine concentration of the 100 mg/kg group was 46.2% greater than the control group. Serum glucose levels were significantly elevated in rats exposed to 2AA. On the contrary, serum albumin concentration was significantly reduced in 2AA‐treated rats. T1D and genetic markers of renal injury such as FABP1, SPP1, IL‐1B, and IL‐7 were elevated in treated groups. These results suggest that 2AA may induce the early diabetic renal injuries.  相似文献   
5.
6.
7.
8.
9.
BackgroundWHO and Uganda''s Ministry of Health emphasize the need to address the growing burden of non-communicable diseases (NCDs). Treatment for these conditions is urgent in northern Uganda where war has negatively affected both health and the public health care system.ObjectivesWe aimed to explore the recognized presence of selected chronic conditions in the out-patient population and to relate this ‘visibility’ to the ability of health units to diagnose and treat them.MethodsAt six health facilities we reviewed patient registers for one month to determine the frequency of hypertension, diabetes, depression, and post traumatic stress disorder (PTSD). We checked the availability of diagnostic instruments and medicines, and interviewed health workers.ResultsThe four conditions were rarely diagnosed in the outpatient population. Hypertension was the most common, but still constituted under 1% of diagnoses. Patterns of diagnosis were uneven, with higher frequency of particular diagnoses at some health facilities. Diagnostic equipment was not sufficient and screening was irregular. Medicine was mostly available although stockouts of some relevant drugs were reported.ConclusionsThe four conditions are relatively invisible in the outpatient population. Greater visibility would be facilitated by regular clinic days for hypertension and diabetes, availability and regular use of diagnostic instruments, and a more reliable supply of the relevant medicines.  相似文献   
10.
Expanding use of immune-checkpoint inhibitors (ICIs) underscores the importance of accurate diagnosis and timely management of neurological immune-related adverse events (irAE-N). We evaluate the real-world frequency, phenotypes, co-occurring immune-related adverse events (irAEs), and long-term outcomes of severe, grade III to V irAE-N at a tertiary care center over 6 years. We analyze how our experience supports published literature and professional society guidelines. We also discuss these data with regard to common clinical scenarios, such as combination therapy, ICI rechallenge and risk of relapse of irAE-N, and corticosteroid taper, which are not specifically addressed by current guidelines and/or have limited data. Recommendations for management and future irAE-N reporting are outlined. ANN NEUROL 2020;87:659–669  相似文献   
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