首页 | 本学科首页   官方微博 | 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   81608篇
  免费   8152篇
  国内免费   187篇
耳鼻咽喉   1178篇
儿科学   2473篇
妇产科学   1787篇
基础医学   11643篇
口腔科学   1991篇
临床医学   10025篇
内科学   14232篇
皮肤病学   1291篇
神经病学   6629篇
特种医学   2826篇
外国民族医学   10篇
外科学   11357篇
综合类   1664篇
一般理论   67篇
预防医学   9292篇
眼科学   1846篇
药学   6711篇
  1篇
中国医学   77篇
肿瘤学   4847篇
  2021年   880篇
  2020年   728篇
  2019年   1109篇
  2018年   1377篇
  2017年   999篇
  2016年   1073篇
  2015年   1235篇
  2014年   1616篇
  2013年   2560篇
  2012年   3458篇
  2011年   3737篇
  2010年   1973篇
  2009年   1899篇
  2008年   3218篇
  2007年   3557篇
  2006年   3403篇
  2005年   3477篇
  2004年   3242篇
  2003年   3012篇
  2002年   2947篇
  2001年   2703篇
  2000年   2809篇
  1999年   2455篇
  1998年   983篇
  1997年   782篇
  1996年   793篇
  1995年   786篇
  1994年   802篇
  1993年   739篇
  1992年   2086篇
  1991年   2016篇
  1990年   1898篇
  1989年   1867篇
  1988年   1769篇
  1987年   1782篇
  1986年   1681篇
  1985年   1665篇
  1984年   1382篇
  1983年   1248篇
  1982年   837篇
  1981年   717篇
  1979年   1209篇
  1978年   869篇
  1977年   759篇
  1976年   710篇
  1975年   711篇
  1974年   859篇
  1973年   748篇
  1972年   731篇
  1971年   637篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
American Indian and Alaska Native (AIAN) individuals are diverse culturally and geographically but share a high prevalence of chronic illness, largely because of obstacles to high-quality health care. The authors comprehensively examined cancer incidence and mortality among non-Hispanic AIAN individuals, compared with non-Hispanic White individuals for context, using population-based data from the National Cancer Institute, the Centers for Disease Control and Prevention, and the North American Association of Central Cancer Registries. Overall cancer rates among AIAN individuals were 2% higher than among White individuals for incidence (2014 through 2018, confined to Purchased/Referred Care Delivery Area counties to reduce racial misclassification) but 18% higher for mortality (2015 through 2019). However, disparities varied widely by cancer type and geographic region. For example, breast and prostate cancer mortality rates are 8% and 31% higher, respectively, in AIAN individuals than in White individuals despite lower incidence and the availability of early detection tests for these cancers. The burden among AIAN individuals is highest for infection-related cancers (liver, stomach, and cervix), for kidney cancer, and for colorectal cancer among indigenous Alaskans (91.3 vs. 35.5 cases per 100,000 for White Alaskans), who have the highest rates in the world. Steep increases for early onset colorectal cancer, from 18.8 cases per 100,000 Native Alaskans aged 20–49 years during 1998 through 2002 to 34.8 cases per 100,000 during 2014 through 2018, exacerbated this disparity. Death rates for infection-related cancers (liver, stomach, and cervix), as well as kidney cancer, were approximately two-fold higher among AIAN individuals compared with White individuals. These findings highlight the need for more effective strategies to reduce the prevalence of chronic oncogenic infections and improve access to high-quality cancer screening and treatment for AIAN individuals. Mitigating the disparate burden will require expanded financial support of tribal health care as well as increased collaboration and engagement with this marginalized population.  相似文献   
2.
3.
Clinical Rheumatology - Sleep disturbance and fatigue are commonly reported in ankylosing spondylitis (AS) but specific prevalence and the relationship to disease control are unknown. This...  相似文献   
4.
5.
Heart Failure Reviews - Although currently employed therapies for heart failure decrease overall mortality and improve patient quality of life temporarily, the disease is known to progress even for...  相似文献   
6.
Breast Cancer Research and Treatment - Chemotherapy-induced peripheral neuropathy (CIPN) is the major treatment-limiting toxicity of paclitaxel, which predominantly presents as sensory symptoms,...  相似文献   
7.
8.
9.
In 2016, an eConsult service was developed within a safety net health system to expand access to hepatitis C (HCV) treatment in the primary care setting. The eConsult system provides individualized treatment recommendations from specially trained primary care pharmacists and primary care physicians to primary care providers with less experience in the rapidly changing treatment of HCV. Since its launch, this service has had a large impact in expanding care to a largely homeless and low-income urban population within our health system. We now aim to evaluate its efficacy in curing HCV. In this retrospective cohort study, we describe rates of sustained virologic response 12 weeks after treatment completion (SVR12) for those who received primary care-based HCV treatment through the eConsult system with those who were treated in primary care independent of an eConsult from 2017 to 2019. We found there was no significant difference in the proportion of patients who achieved SVR12 between the two groups. Overall, >90% of patients who received treatment achieved SVR12. Approximately 40% of patients treated for HCV received an eConsult, suggesting utility of the eConsult in expanding access and coordinating treatment for patients within our network.  相似文献   
10.
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