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   445篇
  免费   13篇
耳鼻咽喉   5篇
儿科学   11篇
妇产科学   4篇
基础医学   59篇
口腔科学   10篇
临床医学   21篇
内科学   80篇
皮肤病学   8篇
神经病学   63篇
特种医学   17篇
外科学   54篇
综合类   2篇
一般理论   4篇
预防医学   52篇
眼科学   17篇
药学   23篇
中国医学   2篇
肿瘤学   26篇
  2023年   3篇
  2021年   5篇
  2020年   5篇
  2019年   4篇
  2018年   8篇
  2017年   7篇
  2016年   6篇
  2015年   7篇
  2014年   9篇
  2013年   14篇
  2012年   25篇
  2011年   21篇
  2010年   10篇
  2009年   11篇
  2008年   22篇
  2007年   35篇
  2006年   18篇
  2005年   11篇
  2004年   9篇
  2003年   14篇
  2002年   13篇
  2001年   9篇
  2000年   13篇
  1999年   4篇
  1996年   3篇
  1992年   3篇
  1991年   6篇
  1990年   11篇
  1989年   14篇
  1988年   7篇
  1987年   6篇
  1986年   6篇
  1985年   6篇
  1984年   8篇
  1983年   5篇
  1982年   4篇
  1979年   11篇
  1978年   5篇
  1976年   2篇
  1975年   6篇
  1974年   9篇
  1973年   5篇
  1972年   9篇
  1971年   6篇
  1970年   3篇
  1969年   10篇
  1968年   7篇
  1967年   6篇
  1966年   4篇
  1958年   2篇
排序方式: 共有458条查询结果,搜索用时 31 毫秒
1.
PURPOSE: In France, legislation mandates that the clinical diagnosis of brain death be confirmed by one paraclinical test before organ donation is allowed. That test may be either the electroencephalogram (EEG) or cerebral angiography. We report a case in which the clinical diagnosis of brain death was first confirmed by two EEGs performed according to the French guidelines, but ruled out by cerebral angiography. Considering that the EEG is no longer recommended to establish the diagnosis of brain death, we discuss the relevance of maintaining the EEG for brain death diagnosis in France. CLINICAL FINDINGS: A 58 yr-old man was admitted to the intensive care unit because of coma secondary to a massive subarachnoid hemorrhage with herniation below the falx shown by computed tomography. Clinical criteria of brain death were rapidly present. Two EEGs first confirmed the diagnosis but a four-vessel cerebral angiography was finally performed because the patient moved spontaneously. This cerebral angiography showed flow in the right internal carotid artery. A computed tomography performed the next day definitely confirmed the absence of brain death and organ donation did not occur. CONCLUSIONS: This case demonstrates the limitations of the EEG for this indication and suggests that angiography should be preferred. French legislation is probably maladjusted and would benefit by incorporating guidelines of other countries like Canada. International harmonization of criteria for brain death diagnosis would also be welcome.  相似文献   
2.
Most U.S. medical schools offer courses in the behavioral and social sciences (BSS), but their implementation is frequently impeded by problems. First, medical students often fail to perceive the relevance of the BSS for clinical practice. Second, the BSS are vaguely defined and the multiplicity of the topics that they include creates confusion about teaching priorities. Third, there is a lack of qualified teachers, because physicians may have received little or no instruction in the BSS, while behavioral and social scientists lack experience in clinical medicine. The authors propose an approach that may be useful in overcoming these problems and in shaping a BSS curriculum according to the institutional values of various medical schools. This approach originates from insights gathered during their attempts to teach various BSS topics at four Israeli medical schools. They suggest that medical faculties (1) adopt an integrative approach to learning the biomedical, behavioral, and social sciences using Engel's "biopsychosocial model" as a link between the BSS and clinical practice, (2) define a hierarchy of learning objectives and assign the highest priority to acquisition of clinically relevant skills, and (3) develop clinical role models through teacher training programs. This approach emphasizes the clinical relevance of the BSS, defines learning priorities, and promotes cooperation between clinical faculty and behavioral scientists.  相似文献   
3.
Summary Both transport and biotransformation processes for a series of pyrimidine nucleobases, ribonucleosides, 2-deoxyribonucleosides, and acetyl and 5-substituted derivatives of the cancerostatic agent araC were studied in the isolated everted rat jejunum with a continuous perfusion technique. Metabolic alterations during penetration were assessed by HPLC. 5-Halogeno and 5-deoxy derivatives of cytosine nucleosides exhibited higher transport rates and higher stability towards the deamination reaction than did unsubstituted derivatives. Octanol-buffer partition coefficients were estimated for the study compounds, and fragmental constants for the sugar moieties of nucleosides were assessed. With the present study compounds there was no correlation between lipophilicity and transport rate, as previously reported, but there was a correlation between lipophilicity and metabolic alteration of araC derivatives (r=0.99, n=5).  相似文献   
4.
It has been proposed that -blocker therapy reverses metabolic and cardiovascular disorders in acute theophylline poisoning. We present a case of acute theophylline overdose treated with esmolol under haemodynamic control. Haemodynamic monitoring was useful in determining the appropriate duration of administration of esmolol and in deciding on treatment with fluids.  相似文献   
5.
Staff members in residential care for youth are frequently confronted with aggressive behaviour, which has adverse effects on their stress levels and work satisfaction. This paper describes a qualitative evaluation to find out how staff members benefit from Non-violent Resistance (NVR), a method to create an aggression mitigating residential climate. Staff members were positive about NVR and reported feeling more relaxed. Most valued aspects of this method were the focus on being a team, delayed response and giving up the illusion of control. However, training and the intention to use NVR isn't enough, high quality implementation and maintenance are crucial.  相似文献   
6.
7.
8.
Dyspnoea is the most frequent complaint in respiratory diseases. During clinical care, the physiotherapist is often in front of a dyspneic patient.So the physiotherapist has an important place in care of the dyspneic patients, first time for the evaluation, and then for the treatment. He is also a major interlocutor in a multidisciplinary staff.This article aims to show evaluation tools of the dyspnoea which allow to cover the various domains of the dyspnoea, and then the different physiotherapy’s methods which allow to decrease it.  相似文献   
9.
Target gland insufficiency and pituitary tumours   总被引:1,自引:0,他引:1  
  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