全文获取类型
收费全文 | 3248篇 |
免费 | 240篇 |
国内免费 | 5篇 |
专业分类
耳鼻咽喉 | 28篇 |
儿科学 | 152篇 |
妇产科学 | 54篇 |
基础医学 | 541篇 |
口腔科学 | 28篇 |
临床医学 | 312篇 |
内科学 | 705篇 |
皮肤病学 | 45篇 |
神经病学 | 420篇 |
特种医学 | 145篇 |
外国民族医学 | 10篇 |
外科学 | 343篇 |
综合类 | 18篇 |
一般理论 | 1篇 |
预防医学 | 279篇 |
眼科学 | 37篇 |
药学 | 162篇 |
中国医学 | 1篇 |
肿瘤学 | 212篇 |
出版年
2021年 | 43篇 |
2020年 | 21篇 |
2019年 | 46篇 |
2018年 | 81篇 |
2017年 | 47篇 |
2016年 | 58篇 |
2015年 | 64篇 |
2014年 | 85篇 |
2013年 | 99篇 |
2012年 | 164篇 |
2011年 | 143篇 |
2010年 | 105篇 |
2009年 | 99篇 |
2008年 | 144篇 |
2007年 | 169篇 |
2006年 | 146篇 |
2005年 | 130篇 |
2004年 | 120篇 |
2003年 | 120篇 |
2002年 | 100篇 |
2001年 | 105篇 |
2000年 | 93篇 |
1999年 | 107篇 |
1998年 | 38篇 |
1997年 | 29篇 |
1996年 | 24篇 |
1995年 | 23篇 |
1994年 | 26篇 |
1993年 | 24篇 |
1992年 | 66篇 |
1991年 | 70篇 |
1990年 | 78篇 |
1989年 | 73篇 |
1988年 | 72篇 |
1987年 | 41篇 |
1986年 | 59篇 |
1985年 | 57篇 |
1984年 | 54篇 |
1983年 | 54篇 |
1982年 | 37篇 |
1981年 | 19篇 |
1979年 | 38篇 |
1978年 | 30篇 |
1977年 | 26篇 |
1976年 | 18篇 |
1975年 | 26篇 |
1974年 | 25篇 |
1972年 | 23篇 |
1971年 | 19篇 |
1970年 | 22篇 |
排序方式: 共有3493条查询结果,搜索用时 31 毫秒
1.
2.
Absence of the amyloid precursor protein gene mutation (APP717: Val->Ile) in 85 cases of early onset Alzheimer''s disease.
下载免费PDF全文
![点击此处可从《Journal of neurology, neurosurgery, and psychiatry》网站下载免费的PDF全文](/ch/ext_images/free.gif)
3.
Somaini Bertino Billo Nils Dubois Jean-Alain Staub Roger 《International journal of public health》1988,33(7):340-344
International Journal of Public Health - Die Übertragungswege des HIV, welche in der Bevölkerung eine Rolle spielen, sind heute bekannt. Neben der sexuellen Übertragung, der... 相似文献
4.
Mario Sénéchal Isabelle Lemieux Isabel Beucler Gerard Drobinski Sylvie Cormont Michelle Dubois Iradj Gandjbakhch Jean-Pierre Després Richard Dorent 《The Journal of heart and lung transplantation》2005,24(7):819-826
BACKGROUND: This study evaluated the prevalence of the atherogenic metabolic triad and the hypothesis that waist circumference and fasting triglyceride concentrations could be used as screening tools for identification of the atherogenic metabolic triad in a population of heart transplant men. It also evaluated the relationship between the atherogenic metabolic triad and coronary artery disease (CAD). METHODS: In the study group of 83 consecutive male heart transplant patients having their routine annual coronarography, 23 patients (28%) were characterized by the atherogenic metabolic triad defined by the presence of elevated fasting insulin and apolipoprotein B concentrations and by small low-density lipoprotein (LDL) particles. RESULTS: Seventy-seven per cent of patients with waist circumference values >/= 90 cm and with elevated triglyceride levels (>/=2.0 mmol/liter) were characterized by this atherogenic metabolic triad. Patients with the atherogenic metabolic triad were at markedly increased risk of CAD (odds ratio of 25.3, 95% CI: 1.11-577.3, p < 0.04) compared to heart transplant patients without the atherogenic metabolic triad. CONCLUSIONS: About 30% of heart transplant patients showed the features of the atherogenic metabolic triad. Measurement and interpretation of waist circumference and fasting triglycerides could be used among heart transplant patients to early identify men characterized by the presence of elevated fasting insulin and apolipoprotein B concentrations and small LDL particles. The presence of the atherogenic metabolic triad identified patients at high risk of CAD even in the heart transplant population. 相似文献
5.
Y Belkacémi B Comet J-M Hannoun-Levi S Villette H Marsiglia M Leblanc-Onfroy B Delalande D Azria J-B Dubois 《Cancer radiothérapie》2007,11(6-7):287-295
Whole breast irradiation delivering an equivalent dose of 50 Gy in 5 weeks, followed by a 10 to 16 Gy-boost to the tumor bed is the standard of care after breast-conserving surgery for early-breast cancer. Accelerated partial breast irradiation (APBI) is currently under investigations in large multi-institutional, prospective, randomized trials to objectively address the critical endpoints of treatment efficacy, toxicity and cosmesis. Patient's selection for this new approach is crucial to individualise treatments and define the subgroups of patients who will really benefit from APBI in terms of quality of life without decreasing long-term results of the disease control and cosmesis. In this review, we will discuss the patients' profiles selection for APBI regarding their general and tumor criteria. The differences between APBI techniques either performed intra or post operatively will be also discussed. 相似文献
6.
I Mallet H Bomy N Govaert I Goudal C Brasme A Dubois S Boudringhien V Pierrat 《Archives de pédiatrie》2007,14(7):881-886
Skin to skin contact is a method derived from kangaroo care whose implementation in industrialized countries has rarely been assessed. OBJECTIVES: To evaluate the barriers, knowledge and expectations of health professionals regarding this care in 2 level III neonatal care units in the Nord-Pas-de-Calais. MATERIALS AND METHODS: Investigation was conducted by means of 2 questionnaires, one intended to physicians, the other to the nursing staff sharing some common questions. The 2 neonatal units differed by the level of implementation of skin to skin contact. Results were compared according to occupation and site of work. RESULTS: 80% of the physicians and 71.4% of the paramedical staff answered to the questionnaires. The difficulties were linked to technical or architectural constraints. Responses were not very different between the 2 teams. The majority (90%) considered this practice as a fully-fledged care. The positive effects on attachment (96% of the answers) were well-known but those on sleep (2,9%), breast-feeding (5%) and pain (0%) were only rarely mentioned. Barriers to implementation were centred on infant's safety. The majority of the team wished to benefit from an educational intervention. DISCUSSION: Although the perception of skin to skin contact was positive in these 2 teams, increased knowledge of the evidence supporting its practice could enable babies and parents to benefit from all its positive effects. The need for educational program was clearly mentioned to improve parents' information. CONCLUSION: This work emphasises the complexity of introducing new procedures in neonatal care particularly in the field of developmental care. 相似文献
7.
One case of schwannoma of the stomach diagnosed with ultrasound-guided biopsy puncture is reported. This diagnosis is usually not established with radiographic and endoscopic examinations. A preoperative diagnosis allows partly predicting the type of exeresis to be performed. On the other hand, guided biopsy puncture seldom allows establishing a prognosis, for which the criteria are based on the analysis of the whole tumor and the possible discovery of synchronous or metachronous metastases. 相似文献
8.
S Schlumberger A Ceddaha A Brusset L Raffin C Dubois D Guilmet M Fischler 《Annales fran?aises d'anesthèsie et de rèanimation》1992,11(4):405-409
The haemodynamic effects and the side-effects of anaesthesia using high doses of fentanyl were compared in two groups of 12 patients each. All the patients had poor left ventricular function and were scheduled for elective coronary artery bypass graft surgery or valvular replacement. Patients were randomly assigned to either group. In group EF, patients were given 5 micrograms.kg-1 of fentanyl, followed by 0.3 mg.kg-1 of etomidate. Once they had lost consciousness, they were given 15 mg of pancuronium and 25 micrograms.kg-1 of fentanyl over a 5 min period. Patients in group F received the full 30 micrograms.kg-1 dose of fentanyl over a 5 min period, followed by 15 mg of pancuronium. The patients were intubated 2 min after the end of the fentanyl infusion. They were mechanically ventilated with 100% oxygen. Anaesthesia was maintained with a continuous infusion of fentanyl (total dose 100 micrograms.kg-1). The usual haemodynamic parameters were monitored and calculated, as well as pain during injection of the drugs, myoclonia, chest wall rigidity and the time to loss of consciousness. The two groups were comparable with respect to age, weight, height and surgery. One third of the patients in group EF complained of pain during etomidate injection. The time required to loose consciousness was shorter in group EF (55 +/- 16 sec) than in group F (177 +/- 56 sec) (p < 0.001). The cardiac index decrease in group EF (2.0 +/- 0.4 l.min-1.m-2 vs. 1.9 +/- 0.4 l.min-1.m-2) (p < 0.05), respectively between the time just before tracheal intubation (T1), and 10 min after tracheal intubation (T3).(ABSTRACT TRUNCATED AT 250 WORDS) 相似文献
9.
Jean-Luc Dubois Jean-François Trani 《ALTER. European Journal of Disability research, Journal europeen de recherche sur le handicap》2009,3(3):192-218
Amartya Sen looks at people's well-being in terms of functioning and freedom, rather than in terms of the amount of goods or services consumed. The capability approach, developed by Sen, deals with what people are able to achieve by using these commodities. Concerning disability, he wrote: “We must take note that a disabled person may not be able to do the many things that an able-bodied individual can, with the same bundle of commodities” [Sen, A. K. (1985). Commodities and capabilities. Oxford: Oxford University Press [1999], p. 7]. The capability approach makes it possible to analyse the economic situation of people with disabilities in a different way. What becomes important is their functioning, i.e. what they are able to achieve within a given context. In fact, the capability set includes not only what a person is effectively able to achieve, but also the potential functionings that he/she can choose. This expresses the degree of freedom that a person with disability benefits from in a given environment. The challenge is therefore to reduce the constraints that the environment adds to a person's impairment in order to expand their capability set and to allow them to live a life which they value. This paper reviews the paradigms that address disability and the ways of assessing a person's capability set within this framework. Achieved functionings are easily measured through cross-sectional surveys, using counterfactual analysis to compare the situations of disabled and non-disabled people. This was done in 2005 in Afghanistan when a national disability survey was carried out on a random sample of households. Measuring detailed capabilities, especially their freedom dimension, is quite complex and requires identifying people's potential choices in an ever-changing environment. This implies a need to extend the philosophical framework and to adopt appropriate statistical methodologies. 相似文献
10.
Christopher G Goetz Stanley Fahn Pablo Martinez-Martin Werner Poewe Cristina Sampaio Glenn T Stebbins Matthew B Stern Barbara C Tilley Richard Dodel Bruno Dubois Robert Holloway Joseph Jankovic Jaime Kulisevsky Anthony E Lang Andrew Lees Sue Leurgans Peter A LeWitt David Nyenhuis C Warren Olanow Olivier Rascol Anette Schrag Jeanne A Teresi Jacobus J Van Hilten Nancy LaPelle 《Movement disorders》2007,22(1):41-47
This article presents the revision process, major innovations, and clinimetric testing program for the Movement Disorder Society (MDS)-sponsored revision of the Unified Parkinson's Disease Rating Scale (UPDRS), known as the MDS-UPDRS. The UPDRS is the most widely used scale for the clinical study of Parkinson's disease (PD). The MDS previously organized a critique of the UPDRS, which cited many strengths, but recommended revision of the scale to accommodate new advances and to resolve problematic areas. An MDS-UPDRS committee prepared the revision using the recommendations of the published critique of the scale. Subcommittees developed new material that was reviewed by the entire committee. A 1-day face-to-face committee meeting was organized to resolve areas of debate and to arrive at a working draft ready for clinimetric testing. The MDS-UPDRS retains the UPDRS structure of four parts with a total summed score, but the parts have been modified to provide a section that integrates nonmotor elements of PD: I, Nonmotor Experiences of Daily Living; II, Motor Experiences of Daily Living; III, Motor Examination; and IV, Motor Complications. All items have five response options with uniform anchors of 0 = normal, 1 = slight, 2 = mild, 3 = moderate, and 4 = severe. Several questions in Part I and all of Part II are written as a patient/caregiver questionnaire, so that the total rater time should remain approximately 30 minutes. Detailed instructions for testing and data acquisition accompany the MDS-UPDRS in order to increase uniform usage. Multiple language editions are planned. A three-part clinimetric program will provide testing of reliability, validity, and responsiveness to interventions. Although the MDS-UPDRS will not be published until it has successfully passed clinimetric testing, explanation of the process, key changes, and clinimetric programs allow clinicians and researchers to understand and participate in the revision process. 相似文献