全文获取类型
收费全文 | 53605篇 |
免费 | 3372篇 |
国内免费 | 422篇 |
专业分类
耳鼻咽喉 | 170篇 |
儿科学 | 1232篇 |
妇产科学 | 706篇 |
基础医学 | 3482篇 |
口腔科学 | 837篇 |
临床医学 | 6614篇 |
内科学 | 6334篇 |
皮肤病学 | 437篇 |
神经病学 | 2077篇 |
特种医学 | 900篇 |
外科学 | 2886篇 |
综合类 | 6325篇 |
现状与发展 | 2篇 |
一般理论 | 12篇 |
预防医学 | 19096篇 |
眼科学 | 290篇 |
药学 | 3470篇 |
27篇 | |
中国医学 | 1234篇 |
肿瘤学 | 1268篇 |
出版年
2024年 | 99篇 |
2023年 | 1138篇 |
2022年 | 1876篇 |
2021年 | 2924篇 |
2020年 | 2723篇 |
2019年 | 3463篇 |
2018年 | 3003篇 |
2017年 | 2196篇 |
2016年 | 1610篇 |
2015年 | 1766篇 |
2014年 | 3926篇 |
2013年 | 3853篇 |
2012年 | 3215篇 |
2011年 | 3549篇 |
2010年 | 2730篇 |
2009年 | 2501篇 |
2008年 | 2477篇 |
2007年 | 2347篇 |
2006年 | 1876篇 |
2005年 | 1301篇 |
2004年 | 1088篇 |
2003年 | 869篇 |
2002年 | 709篇 |
2001年 | 573篇 |
2000年 | 465篇 |
1999年 | 396篇 |
1998年 | 339篇 |
1997年 | 277篇 |
1996年 | 173篇 |
1995年 | 163篇 |
1994年 | 151篇 |
1993年 | 139篇 |
1992年 | 118篇 |
1991年 | 92篇 |
1990年 | 70篇 |
1989年 | 75篇 |
1987年 | 65篇 |
1985年 | 278篇 |
1984年 | 391篇 |
1983年 | 314篇 |
1982年 | 329篇 |
1981年 | 307篇 |
1980年 | 263篇 |
1979年 | 237篇 |
1978年 | 211篇 |
1977年 | 157篇 |
1976年 | 146篇 |
1975年 | 122篇 |
1974年 | 108篇 |
1973年 | 80篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
91.
《Research in social & administrative pharmacy》2020,16(11):1597-1601
Disseminating research findings from global health collaborations is essential to advancing science. However, there are a number of ethical considerations and potential challenges to address to ensure thoughtful and non-exploitative reporting. The factors include the benefits and risks to publication, authorship criteria or values, and the accessibility of forums or journals in which to pursue publication. This paper provides commentary related to planning for writing, communicating intentions to publish, obtaining permissions to publish, risks in internationally collaborative work, authorship principles, and journal selection. Authors' and editors’ knowledge of experienced individuals from both pharmacy literature, medical fields, and general publications is incorporated to provide an assessment of risks and benefits of publication of international global health research. 相似文献
92.
93.
94.
95.
96.
97.
《Gaceta sanitaria / S.E.S.P.A.S》2022,36(1):25-31
ObjectiveTo analyse the similarities and differences in the discourse surrounding the conceptualisation of health and the perceived health assets and needs in the neighborhoods and city of Bilbao in a participatory process.MethodParticipatory workshops were held with professionals, neighbors and associated citizens. The differences in perceptions of the three content blocks were analysed on the basis of the health model referred, as well as the typologies —of a more individual or structural nature— of identified health needs and assets.ResultsThe conceptualisation of health from a biopsychosocial perspective was clearer among professionals, although both profiles pointed to the importance of its social determinants. The formulation of needs and assets in health by the neighbors was made from the impact on their daily life and from a position of users with respect to a service provider administration. Among the associated citizens and professionals, intermediate and structural determinants were more frequently mentioned, as well as issues related to the administration's scope of action.ConclusionsThe inclusion of the multiplicity and diversity of perceptions in planning is key to good local government for health. To address their contradictions, a commitment by governments to effectively incorporate citizen participation is needed. 相似文献
98.
Approximately 36 400 cardiac and 23 100 thoracic operations are carried out in the United Kingdom between 2006 and 2015. National Health Service (NHS) resolution, as known as the NHS litigation authority, is one of the essential bodies of the Department of Health. Its purpose is to provide NHS expertise to resolve concerns fair and square share learning for improvement. We aim to evaluate and increase awareness of medicolegal cases in cardiothoracic surgery. Total numbers and details of claims coded by NHS resolution in cardiothoracic surgery from 2004 to 2017 were requested under the Freedom of Information Act 2000. The data provided in successful claims is further breakdown into damages paid to the claimant, defence cost, claimant cost paid and the sum of the three. In contrast, unsuccessful claims only include the defence cost. Moreover, data provided also includes further analysis of primary causes and primary injuries for Claims Closed/Settled with damages paid. There were 753 claims recorded from 2004 to 2017, of which 415 (55.11%) were successful. The number of claims has been steadily increasing since 2004, with two significant raises from 2009/10 to 2010/11 (37‐55, 48.64% raise) and 2012/13 to 2013/14 (49‐69, 40.82% raise). The mean successful claim ratio was 69.58% (range, 47.56%‐ 83.33%) There is also a steady increase in the successful ratio from 2004 to 2017. In summary, this is the first study published in relation to litigation claims on cardiothoracic surgery in the United Kingdom. The results have provided insight on claims made against cardiothoracic surgery. 相似文献
99.
《Revue d'épidémiologie et de santé publique》2020,68(6):327-336
BackgroundOur study was aimed at examining disparate exposure to physically demanding working conditions in France, a key objective being to identify the types of employees/jobs requiring high-priority preventive actions.MethodsWe analyzed the data from the 2017 French nationwide cross-sectional survey (SUMER) on occupational hazards to which French employees in various sectors were subjected. The prevalence of several types of physically demanding working conditions (lifting of heavy loads, awkward body postures, vibrations, noise, and extreme temperatures) was explored. Potential associations of individual and job characteristics with these factors of hardship at work were studied by multivariate logistic regression.ResultsIn total, 48% of employees were exposed to at least one physically demanding working condition and 24.8% were exposed to multiple constraints. While managers and intellectual professionals were exposed relatively infrequently to physical constraints, blue-collar workers experienced the highest frequency of exposure. On the one hand, the role of company size depended on the factor of hardship at work considered; on the other hand, employees in large-scale companies were generally less exposed. As expected, employees in the construction industry were the most exposed to physical constraints; that said, our results also show that some activities in the services sector (e.g., personal care, administrative and support services) were quite significantly affected by a wide array of physically demanding working conditions.ConclusionNotwithstanding the establishment in France of Plans de Santé au travail (preventive workplace health and safety plans), occupational risks were found to be high, and above all, they were unevenly distributed among the various socio-professional categories, and strongly contributed to social inequalities in health. Our results identify the types of publics to be designated as high-priority targets for preventive measures aimed at reducing the adverse impacts of physically demanding working conditions and the incidence of associated musculoskeletal disorders. 相似文献
100.
Stanislas Grassin‐Delyle Michaela Semeraro Frantz Foissac Naim Bouazza Haleema Shakur‐Still Ian Roberts Jean‐Marc Treluyer Saïk Urien 《Fundamental & clinical pharmacology》2019,33(6):670-678
Tranexamic acid (TXA) is an antifibrinolytic drug that reduces surgical blood loss and death due to bleeding after trauma and post‐partum haemorrhage. One key issue for treatment success is early administration. While usually given intravenously, oral and intramuscular use would be useful in specific circumstances. Therefore, an understanding of TXA pharmacokinetics when given via different routes is valuable. The aim of this study was to perform an individual participant data meta‐analysis of pharmacokinetic studies with TXA given to healthy volunteers via different routes. We searched the following databases: PubMed, Web of Science, Wiley Online Library, Elsevier Science Direct and J‐STAGE. Individual subject data were extracted when available, otherwise arithmetic means were used. A population pharmacokinetic model was developed using nonlinear mixed effect modelling. Seven studies were included in the analysis with data from 10 patients for the IV route, six patients for the IM route and 114 patients for the oral route. The pharmacokinetics was ascribed to a two‐compartment model, and the main covariate was allometrically scaled bodyweight. Oral and IM bioavailabilities were 46 and 105%, respectively. For a 70 kg bodyweight, the population estimates were 7.6 L/h for clearance, 17.9 L for the volume of the central compartment, 2.5 L/h for the diffusional clearance and 16.6 L for the peripheral volume of distribution. Larger well‐designed studies are needed to describe the pharmacokinetics of TXA when given IM or as an oral solution before these can be recommended as alternatives to IV. 相似文献