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   48016篇
  免费   3211篇
  国内免费   93篇
耳鼻咽喉   194篇
儿科学   1601篇
妇产科学   1525篇
基础医学   7283篇
口腔科学   334篇
临床医学   4483篇
内科学   4128篇
皮肤病学   225篇
神经病学   18211篇
特种医学   971篇
外科学   2092篇
综合类   265篇
现状与发展   1篇
一般理论   6篇
预防医学   4781篇
眼科学   571篇
药学   3513篇
中国医学   60篇
肿瘤学   1076篇
  2024年   72篇
  2023年   1581篇
  2022年   2177篇
  2021年   2542篇
  2020年   2666篇
  2019年   2222篇
  2018年   2243篇
  2017年   2873篇
  2016年   2900篇
  2015年   2631篇
  2014年   4352篇
  2013年   3673篇
  2012年   2200篇
  2011年   2072篇
  2010年   2911篇
  2009年   2638篇
  2008年   1268篇
  2007年   1207篇
  2006年   963篇
  2005年   780篇
  2004年   609篇
  2003年   591篇
  2002年   559篇
  2001年   525篇
  2000年   446篇
  1999年   555篇
  1998年   397篇
  1997年   344篇
  1996年   387篇
  1995年   307篇
  1994年   241篇
  1993年   220篇
  1992年   189篇
  1991年   183篇
  1990年   206篇
  1989年   161篇
  1988年   120篇
  1987年   87篇
  1986年   60篇
  1985年   120篇
  1984年   133篇
  1983年   93篇
  1982年   118篇
  1981年   94篇
  1980年   73篇
  1979年   93篇
  1978年   70篇
  1977年   59篇
  1976年   49篇
  1974年   53篇
排序方式: 共有10000条查询结果,搜索用时 140 毫秒
1.
AimsWe examined the impact of memory complaints on the concordance between self-report (SR) and electronically monitored (EM) medication adherence, independent of depression symptoms, among adults with type 2 diabetes (T2D).MethodsAdults (N = 104, age = 56.6 ± 9.2; 64% female) completed a prospective and retrospective memory questionnaire (PRMQ) and a depression symptom interview at baseline. EM was tracked over 3 months and participants rated adherence using SR. Multiple linear regression evaluated PRMQ as a moderator of the relationship between EM and SR, adjusting for depression and other covariates.ResultsPRMQ was correlated with lower SR (r = ?0.31, p = 0.001), but not with EM. PRMQ moderated the relationship between SR and EM, independent of depression symptoms. At low levels of PRMQ, SR and EM were closely related (β = 0.76, p < 0.001); at high levels of PRMQ the relationship was weaker (β = 0.28, p = 0.02). Participants who under-reported their adherence (SR < EM) had higher PRMQ scores than more concordant reporters (p = 0.016).ConclusionsSR and EM measures were less concordant among adults with T2D who endorsed higher PRMQ scores. Memory complaints may contribute to under-reporting of medication adherence in adults with T2D.  相似文献   
2.
3.
4.
5.
《Autoimmunity reviews》2022,21(9):103143
Autoimmune diseases (AID) are increasingly prevalent conditions which comprise more than 100 distinct clinical entities that are responsible for a great disease burden worldwide. The early recognition of these diseases is key for preventing their complications and for tailoring proper management. In most cases, autoantibodies, regardless of their potential pathogenetic role, can be detected in the serum of patients with AID, helping clinicians in making a definitive diagnosis and allowing screening strategies for early -and sometimes pre-clinical- diagnosis. Despite their undoubted crucial role, in a minority of cases, patients with AID may not show any autoantibody, a condition that is referred to as seronegative AID. Suboptimal accuracy of the available laboratory tests, antibody absorption, immunosuppressive therapy, immunodeficiencies, antigen exhaustion, and immunosenescence are the main possible determinants of seronegative AID. Indeed, in seronegative AID, the diagnosis is more challenging and must rely on clinical features and on other available tests, often including histopathological evaluation and radiological diagnostic tests. In this review, we critically dissect, in a narrative fashion, the possible causes of seronegativity, as well as the diagnostic and management implications, in several AID including autoimmune gastritis, celiac disease, autoimmune liver disease, rheumatoid arthritis, autoimmune encephalitis, myasthenia gravis, Sjögren’s syndrome, antiphospholipid syndrome, and autoimmune thyroid diseases.  相似文献   
6.
7.
《Explore (New York, N.Y.)》2022,18(6):683-687
Background and aims Electroconvulsive therapy (ECT) is considered a safe, effective, and significant treatment in patients suffering from a major depressive disorder. Anxiety caused by this invasive treatment may impose several side effects on patients. The purpose of this study was to evaluate the effectiveness of aromatherapy with inhaled lavender essential oil and breathing exercises on ECT-related anxiety in depressed patients.Methods In this randomized controlled clinical trial, 90 depressed patients were selected and divided into three groups: aromatherapy, breathing exercise, and routine care using a random allocation method. Before undergoing ECT, the aromatherapy group was exposed to the inhaled lavender essential oil (n = 30), the breathing exercise group performed the breathing exercises (n = 30), and the routine care group received routine care (n = 30). Before (20 min) and after the intervention (30 min later), patients' anxiety was assessed using Beck Anxiety Inventory.Results After the intervention, the results revealed that anxiety score changes were statistically significant among the three groups (p < 0.001). In addition, it was found that the patients’ mean anxiety scores significantly decreased in the aromatherapy and breathing exercise groups compared to with the pre-intervention scores (p < 0.001).Conclusion Aromatherapy with inhaled lavender essential oil and breathing exercises can be considered by clinical nurses as simple, applicable, and effective interventions to reduce ECT-related anxiety in depressed patients.  相似文献   
8.
《Explore (New York, N.Y.)》2022,18(5):519-522
ObjectivesThousands of people throughout the world are convinced that they have been abducted by aliens. We aimed to assess the emotional reaction to such an implausible event and propose some explanations alternative to severe psychopathology.MethodsA total of 19 individuals who reported memories of having been abducted by aliens were compared to a control group of 32 participants. We employed a battery of tests measuring post-traumatic stress disorder, suggestibility, and dissociation within all participants.ResultsThe abductee group showed higher scores in measures of post-traumatic stress disorders and dissociation, but lower in suggestibility. Nevertheless, these differences were statistically significant only in suggestibility.ConclusionsThe emotional reaction to memories of an implausible experience can be similar to an individual's response to a genuinely traumatic event. Dissociation might be involved in the clarification of some cases. Explanations alternative to psychosis for these testimonies are proposed.  相似文献   
9.
Journal of Behavioral Medicine - Evidence supports the use of graphic warnings to educate the public about the health harms of smoking and suggests warnings eliciting negative emotional responses...  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