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   10622篇
  免费   743篇
  国内免费   119篇
医药卫生   11484篇
  2024年   6篇
  2023年   282篇
  2022年   488篇
  2021年   634篇
  2020年   639篇
  2019年   597篇
  2018年   514篇
  2017年   403篇
  2016年   318篇
  2015年   414篇
  2014年   953篇
  2013年   748篇
  2012年   762篇
  2011年   862篇
  2010年   738篇
  2009年   603篇
  2008年   471篇
  2007年   416篇
  2006年   351篇
  2005年   236篇
  2004年   162篇
  2003年   137篇
  2002年   132篇
  2001年   129篇
  2000年   85篇
  1999年   88篇
  1998年   75篇
  1997年   48篇
  1996年   44篇
  1995年   20篇
  1994年   22篇
  1993年   12篇
  1992年   13篇
  1991年   13篇
  1990年   9篇
  1989年   7篇
  1988年   12篇
  1987年   1篇
  1986年   6篇
  1985年   12篇
  1984年   5篇
  1982年   6篇
  1981年   4篇
  1980年   1篇
  1979年   1篇
  1978年   2篇
  1977年   1篇
  1975年   2篇
排序方式: 共有10000条查询结果,搜索用时 93 毫秒
41.
Background: Ventral abdominal wall hernias are a common cause of morbidity and mortality. Opinion varies as to appropriate management. A recent consensus meeting on incisional hernia identified the need to standardise repair. On this background, a survey of current practice was performed. Method: A questionnaire was sent to 101 practicing general surgeons within the West of Scotland. Incisional, epigastric and para-umbilical defects were subdivided into defect size <2, 2–5 and >5 cm. The surgeons were asked to indicate the most appropriate repair (suture, mayo or mesh) for each. The influence of reducibility on the decision to repair was also assessed. Results: Sixty-one of 101 questionnaires were returned valid giving a response rate of 60%. Suture repair was significantly more likely to be used in all defects <2 cm (P<0.001). Mesh repair was significantly more likely to be recommended in all defects >5 cm (P<0.001). Of defects >5-cm, mesh was recommended for 90% of incisional hernia compared with 81% of epigastric and 76% of para-umbilical hernia (P<0.001). There was no significant difference in choice of repair for defect size 2–5 cm with opinion divided between suture and mesh. Irreducibility increased the likelihood of recommendation for repair. Conclusion: This survey shows a lack of consensus on the appropriate repair of ventral abdominal wall hernia amonge practicing consultant general surgeons. This reflects the contrasting views within the current literature.  相似文献   
42.
腹腔镜胆囊切除术后残株胆囊及胆囊管结石   总被引:4,自引:0,他引:4  
目的探讨腹腔镜胆囊切除术后残株胆囊/胆囊管结石的原因、诊断、处理及预防方法。方法回顾总结我院 1992-2005年间收治的8例腹腔镜胆囊切除术后残株胆囊/胆囊管结石病例的临床资料。结果 8例病人术前经B超、MRI、 ERCP检查确诊后,均经再次手术治愈。残株胆囊结石2例;残株胆囊管结石6例,其中2例合并胆总管结石;2例行残余胆囊切除术,6例行残株胆囊管切除、其中4例附加胆总管切开探查和/或取石、T型管引流。随访1.1-13年,效果良好。结论判断失误是腹腔镜胆囊切除术后残株胆囊结石的主要原因,过长的炎性及畸形的胆囊管残留是腹腔镜胆囊切除术后残株胆囊管结石的主要原因;其症状和体征类似于结石性胆囊炎、合并胆管结石时可有黄疸;B超、CT、ERCP等检查可确诊;再次手术切除(或取出)残株胆囊/胆囊管(结石)是有效可靠的治疗方法;娴熟的腹腔镜技术、术中胆道造影、正确掌握中转开腹指征以及丰富的胆道外科经验是预防其发生的关键。  相似文献   
43.
胃切除术后急性胆囊炎的微创治疗   总被引:2,自引:0,他引:2       下载免费PDF全文
目的:探讨胃切除后急性胆囊炎的微创治疗的方法和效果。方法:回顾性分析28例胃切除术后近期(<4周)并发急性胆囊炎患者的临床资料。全组均明确诊断后先行常规非手术治疗,经24h治疗后症状体征无缓解的病例加行B超引导下经皮经肝胆囊穿刺置管引流术(PTGD)。结果:5例经非手术治疗缓解;23例加行PTGH,穿刺置管成功率100%。置管抽吸胆汁后症状体征即明显减轻,3~7d后症状体征完全消失。结论:超声引导下经皮经肝胆囊穿刺置管引流术治疗胃切除术后近期并发急性胆囊炎效果确切,创伤小,患者恢复快,具有明显的优越性。  相似文献   
44.
Summary   Epileptic psychoses reflect a fundamental disruption in the fidelity of mind and occur during seizure freedom or during or after seizures. The psychotic symptoms in epilepsy share some qualities with schizophrenic psychosis, such as positive symptoms of paranoid delusions and hallucinations. Psychotic syndromes in epilepsy are most common but not exclusively associated with temporal lobe epilepsy. De Novo psychosis following epilepsy surgery is rare. Forced normalization—psychosis associated with dramatic reduction of epileptiform activity or seizures is described in small series only. Ictal and postictal psychosis can be prevented with seizure control, but postictal and chronic interictal psychoses require multidisciplinary and psychopharmacologic management.  相似文献   
45.
阐述了在市场经济体制下医院管理面临的新情况,提出了新的医院管理模式应以分级管理为基础, “业务部制”式管理为重点,科室成本核算为核心,注重形象管理,服从政府宏观调控,确保医院的生存和发展。  相似文献   
46.
中山市各级政府切实加强妇幼卫生工作的领导,卫生部门主动开展工作,有关部门紧密配合,以提高人口素质为宗旨,抓重点、攻难点,始终把妇幼卫生工作的主要目标纳入各级政府社会经济发展目标管理,作为考核干部和政府工作的重要内容,使各项指标如期圆满完成。  相似文献   
47.
The author focuses attention or institutional psychotherapy and draws its clinical, philosophical and also ethical concepts in order to prove that an administrative logic of the mental institutions only leads to loose what characterise healing process. Three main axis are tackled: the concept of reaction, the concept of pathoplasty and the concept of alienation. The concept of reaction makes understandable how the atmosphere of an institution is exercising a so great influence on its patients' symptoms that a self-governing endogenic psychopathological process “that is turned away from its initial cause” is created. That results in the concept of pathoplasty, which refers to the fact that some aspects of the pathology are induced by the institution itself, from which result two main ideas of the institutional psychotherapy: a) an institution is to tie down to an auto analysis to heal its own pathological functioning; b) all the more so that an institution which doesn't could become iatrogenic. The concept of alienation is approached through the historical and philosophical aspects of the Marxist view. The author use Bataille's differentiation between restricted economy “which is in keeping with a capitalist one, susceptible of an accountable evaluation” - and general economy - which confus to negativity as a foundation for an inner social work, apart from any accountable evaluation to Hegel's mind for instance, desire is indissociable from the psychiatric heal.  相似文献   
48.
谭家钊 《中国医院》2002,6(5):27-28
从高原部队医院实际出发,阐述了适应新形势谋求新发展应处理好的七个关系:即继承与创新的关系;坚持“姓军为兵的服务方向与对外有偿服务的关系;基础建设与人才建设的关系;日常医疗保障与科研的关系;发挥自身特色与学习借鉴的关系;硬件建设与软件建设的关系;科技研究与成果转化的关系。  相似文献   
49.
医院后勤服务社会化实践中的几点思考   总被引:3,自引:1,他引:2  
艾卫民 《中国医院》2002,6(4):54-55
就医院后勤服务社会化的实际操作中的几个问题进行了论述,指出实行后勤社会化服务,必须有相应的外部环境;后勤部门实行企业化管理,必须有相配套的政策作保障;实施商品化服务,必须有对等的经济意识;加大后勤服务化的力度,必须有果敢超前的决策意识。  相似文献   
50.
External quality assessment (EQA) schemes in histopathology form a key part of laboratory quality management, but their principal function is educational. ‘Test’ material is circulated to participants, who evaluate the material following their normal practice and return responses to an organizing laboratory for collation and evaluation. The test material must be representative of the routine workload, but not mundane. Unlike histopathology slide clubs, objective, quantitative, personal feedback for each participant is vital to ensure unambiguously the identification of areas requiring CPD. The objective evaluation of textual responses in EQA is problematic, but various approaches have been used successfully. The participants are individuals, not laboratories, so confidentiality is paramount. Mechanisms to investigate persistent substandard performance must exist, but should be used very rarely; self-improvement is the usual route to protecting standards of patient care.  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