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   40437篇
  免费   3177篇
  国内免费   400篇
耳鼻咽喉   211篇
儿科学   606篇
妇产科学   748篇
基础医学   1206篇
口腔科学   620篇
临床医学   9385篇
内科学   3113篇
皮肤病学   218篇
神经病学   790篇
特种医学   531篇
外国民族医学   1篇
外科学   4142篇
综合类   6589篇
现状与发展   3篇
一般理论   3篇
预防医学   10695篇
眼科学   190篇
药学   3416篇
  120篇
中国医学   635篇
肿瘤学   792篇
  2024年   34篇
  2023年   815篇
  2022年   1280篇
  2021年   2003篇
  2020年   2561篇
  2019年   1568篇
  2018年   1473篇
  2017年   1518篇
  2016年   1572篇
  2015年   1562篇
  2014年   3724篇
  2013年   3385篇
  2012年   3072篇
  2011年   3041篇
  2010年   2524篇
  2009年   2096篇
  2008年   2120篇
  2007年   1833篇
  2006年   1683篇
  2005年   1282篇
  2004年   1086篇
  2003年   822篇
  2002年   574篇
  2001年   426篇
  2000年   351篇
  1999年   272篇
  1998年   259篇
  1997年   184篇
  1996年   158篇
  1995年   108篇
  1994年   98篇
  1993年   98篇
  1992年   62篇
  1991年   71篇
  1990年   36篇
  1989年   34篇
  1988年   31篇
  1987年   26篇
  1986年   23篇
  1985年   39篇
  1984年   24篇
  1983年   24篇
  1982年   15篇
  1981年   17篇
  1980年   14篇
  1979年   3篇
  1978年   7篇
  1977年   3篇
  1976年   2篇
  1974年   1篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
91.
人工智能在医疗领域的应用逐步推动医疗变革,机器学习算法融入麻醉领域对于进一步提升麻醉发展意义重大。为了解机器学习算法在麻醉领域的应用现况及推动相关研究进展,本文总结了机器学习在围手术期麻醉管理和预测术后并发症方面的应用、基本概念和研究现状,指出了目前机器学习算法在医疗领域的不足之处。  相似文献   
92.
93.
血液净化中心是医院血液透析患者开展血液净化治疗的主要场所。在血液净化中心开展血液净化治疗的患者通常来说免疫功能低下,容易发生感染,并且对设备具有较强的依赖性。因此血液净化中心设备管理质量直接影响着血液透析中心的血液净化治疗效果。这便要求血液净化中心应该不断加强设备管理,提高设备管理质量,为患者的治疗提供更好的服务。因此近些年人们对于血液净化中心设备管理的重视程度不断提高,很多专家关于血液净化中心的设备管理开展了很多研究工作,本文将近些年的研究进展进行综述,以期为血液净化中心的设备管理提供借鉴。  相似文献   
94.
Multiple professional groups and societies worldwide have produced airway management guidelines. These are typically targeted at the process of tracheal intubation by a particular provider group in a restricted category of patients and reflect practice preferences in a particular geographical region. The existence of multiple distinct guidelines for some (but not other) closely related circumstances, increases complexity and may obscure the underlying principles that are common to all of them. This has the potential to increase cognitive load; promote the grouping of ideas in silos; impair teamwork; and ultimately compromise patient care. Development of a single set of airway management guidelines that can be applied across and beyond these domains may improve implementation; promote standardisation; and facilitate collaboration between airway practitioners from diverse backgrounds. A global multidisciplinary group of both airway operators and assistants was assembled. Over a 3-year period, a review of the existing airway guidelines and multiple reviews of the primary literature were combined with a structured process for determining expert consensus. Any discrepancies between these were analysed and reconciled. Where evidence in the literature was lacking, recommendations were made by expert consensus. Using the above process, a set of evidence-based airway management guidelines was developed in consultation with airway practitioners from a broad spectrum of disciplines and geographical locations. While consistent with the recommendations of the existing English language guidelines, these universal guidelines also incorporate the most recent concepts in airway management as well as statements on areas not widely addressed by the existing guidelines. The recommendations will be published in four parts that respectively address: airway evaluation; airway strategy; airway rescue and communication of airway outcomes. Together, these universal guidelines will provide a single, comprehensive approach to airway management that can be consistently applied by airway practitioners globally, independent of their clinical background or the circumstances in which airway management occurs.  相似文献   
95.
Total hip replacement revision surgery is accompanied by significant blood loss. Using rotational thrombelastometry (ROTEM) perioperatively to diagnose coagulopathy may help to provide rapid aimed therapy and thus decrease blood loss and the consumption of transfusion products. The aim of this case-control study was to find out whether point of care using of ROTEM may reduce blood loss and the consumption of blood transfusion products in hip replacement revision surgery.Data were prospectively collected from patients who underwent hip replacement revision surgery in the period 2017 to 2018 when the management of bleeding and coagulopathy was based on the results of ROTEM. Data were compared with a group of historical controls for the period 2015 to 2016 when bleeding and coagulopathy management was not based on ROTEM results. The consumption of blood transfusion products and perioperative blood loss were compared between the groups.The total number of analyzed patients was 90. Forty five patients were analyzed in the ROTEM group and the same number of patients were analyzed in the non-ROTEM group. Significantly decreased perioperative consumption of fresh frozen plasma and packed red blood cells was found in the ROTEM, as well as decreased perioperative blood loss comparing to non-ROTEM group. All data were statistically different with P < .05.Perioperative management of bleeding and coagulopathy based on the results of ROTEM during hip replacement revision surgery seems to help to decrease perioperative blood loss and the consumption of blood transfusion products, especially fresh frozen plasma.  相似文献   
96.
目的探讨广州市某三级甲等医院35岁以上护理人员的健康体检状况。方法回顾性分析我院2017年35岁以上护理人员健康体检结果,按年龄段分为35~44岁组和45~55岁组,并将科室按风险级别分为Ⅰ类、Ⅱ类、Ⅲ类,统计分析体检结果异常率,并将其血脂与常模进行比较。结果35岁以上在职护理人员的体检结果异常率为57.4%,其中45~55岁处于Ⅰ类风险科室的护士体检异常率最高;35~44岁组、45~55岁组、常模血脂指标中总胆固醇(CHOL)、甘油三脂(TG)、低密度脂蛋白(LDL-C)比较,差异均有统计学意义(F=20.768,P<0.001;F=13.673,P<0.001;F=11.627,P<0.001),且45~55岁组的CHOL、TG、LDL-C值均高于35~44岁组。结论医院健康管理者应重视35岁以上在职护理人员的健康管理,尤其是45岁以上护理人员在血脂方面的监控和健康宣教。  相似文献   
97.
98.
探讨岗位价值评估方法在医院人力资源的管理过程中的应用和意义。采用国际岗位价值评估系统(IPE)对A医院现有140个岗位进行岗位价值评估,并利用岗位评分对人力资源管理问题进行剖析。A医院岗位评估分数的总趋势和总分布结果显示,岗位评估分值曲线现呈较平滑的递减趋势,这表明A医院职能处室内部各类岗位的岗位价值不存在明显差异。从各个职能处室内部来看,内部岗位评价结果分布比较均匀,说明部门内部分工相对合理。岗位价值评价有助于增强医院薪酬分配的公平性,提高薪酬的激励性,也有利于优化医院管理制度,推动医院可持续发展。  相似文献   
99.
AimsWe aimed to find out: the typical workload for metastatic bone disease, the conventional treatment for femoral metastases and whether there is a trend for arthroplasty and endoprosthetic reconstruction.Materials and methodsAll sequential patients undergoing surgery for femoral metastatic lesions (both pathological fracture and impending pathological fracture) of any age patient were included in the multicenter snapshot audit. Data on demographics, institutions and operative procedures were recorded.Results24 UK Institutions were enrolled, including 7 Major Trauma Centres (MTCs). It was a 2 month audit from 1stMarch 2018. 95 cases were recorded. The mean age was 71 and 65% were female. 66 patients had a fracture at presentation and 23 an impending fracture. Breast carcinoma was the primary tumour at 23%. The mean Mirel’s score is 9. The commonest fixation was with a long cephalomedullary nail (38%). Endoprostheses accounted for 24%. None of the endoprostheses were implanted at MTCs.ConclusionThis audit revealed large numbers of cases of femoral metastases. Although the use of endoprostheses may be increasing in Trauma Units, intramedullary nailing still predominates. Future pathways may benefit from directing resources to allow greater arthroplasty.  相似文献   
100.
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