全文获取类型
收费全文 | 153629篇 |
免费 | 7563篇 |
国内免费 | 387篇 |
专业分类
耳鼻咽喉 | 2338篇 |
儿科学 | 4533篇 |
妇产科学 | 3184篇 |
基础医学 | 21071篇 |
口腔科学 | 4699篇 |
临床医学 | 10188篇 |
内科学 | 37743篇 |
皮肤病学 | 4527篇 |
神经病学 | 12897篇 |
特种医学 | 3902篇 |
外国民族医学 | 4篇 |
外科学 | 20294篇 |
综合类 | 827篇 |
一般理论 | 42篇 |
预防医学 | 13837篇 |
眼科学 | 3270篇 |
药学 | 10572篇 |
中国医学 | 706篇 |
肿瘤学 | 6945篇 |
出版年
2023年 | 888篇 |
2022年 | 654篇 |
2021年 | 2961篇 |
2020年 | 1525篇 |
2019年 | 3344篇 |
2018年 | 5523篇 |
2017年 | 3325篇 |
2016年 | 3149篇 |
2015年 | 3597篇 |
2014年 | 4160篇 |
2013年 | 6229篇 |
2012年 | 10826篇 |
2011年 | 11497篇 |
2010年 | 5968篇 |
2009年 | 4348篇 |
2008年 | 9440篇 |
2007年 | 10100篇 |
2006年 | 9357篇 |
2005年 | 9412篇 |
2004年 | 8432篇 |
2003年 | 8042篇 |
2002年 | 7565篇 |
2001年 | 4283篇 |
2000年 | 4833篇 |
1999年 | 3737篇 |
1998年 | 902篇 |
1997年 | 657篇 |
1996年 | 592篇 |
1995年 | 543篇 |
1994年 | 423篇 |
1993年 | 415篇 |
1992年 | 1537篇 |
1991年 | 1295篇 |
1990年 | 1129篇 |
1989年 | 980篇 |
1988年 | 816篇 |
1987年 | 816篇 |
1986年 | 815篇 |
1985年 | 678篇 |
1984年 | 542篇 |
1983年 | 447篇 |
1979年 | 437篇 |
1975年 | 339篇 |
1974年 | 377篇 |
1973年 | 432篇 |
1972年 | 341篇 |
1971年 | 357篇 |
1970年 | 323篇 |
1969年 | 331篇 |
1968年 | 310篇 |
排序方式: 共有10000条查询结果,搜索用时 140 毫秒
1.
2.
Vilar-Compte Mireya Gaitán-Rossi Pablo Félix-Beltrán Lucía Bustamante Arturo V. 《Journal of immigrant and minority health / Center for Minority Public Health》2022,24(1):65-77
Journal of Immigrant and Minority Health - COVID-19 has disproportionally affected underrepresented minorities (URM) and low-income immigrants in the United States. The aim of the study is to... 相似文献
3.
Schneider Ralph Dettmer Marius Peters Nora Lamdark Tenzin Luedi Markus M. Adamina Michel Doll Dietrich 《European Surgery》2022,54(2):117-125
European Surgery - Treatment of pilonidal sinus disease (PSD) requires a tailored approach. A national guideline was published in 2014. The current status of surgical PSD therapy... 相似文献
4.
5.
Despite common experiences of identity damage, decline, and deterioration, many brain injury survivors succeed in reconstructing robust identities in the wake of injury. Yet, while this accomplishment greatly benefits survivors’ quality of life, little is known about how positive identity work might be facilitated or enhanced in therapeutic institutions. Drawing on data from a women’s self-help group, we argue that an egalitarian, reflective, strength-focused, and gender-segregated environment can provide female ABI (acquired brain injury) survivors with a fertile scene for identity enhancement and offer unique opportunities for collective identity development. Sociolinguistic interactional analysis revealed four types of positive identity work undertaken within the group: constructing competent selves; tempering the threat of loss and impairment; resisting infantilisation and delegitimisation; and asserting a collective gender identity. This identity work was facilitated by specific programme attributes and activities and contributed to the global project of decentring disability and destigmatising impairments and losses. We call for increased attention to identity issues in brain injury rehabilitation and argue that gender-segregated programming can provide a unique space for female survivors to construct empowering individual and collective identities after injury. 相似文献
6.
7.
8.
Ángel Becerra Héctor Trujillo Lucía Valencia Aurelio Rodríguez‐Pérez 《Brazilian Journal of Anesthesiology》2019,69(2):200-203
Background and objectives
A prompt and effective management of trauma patient is necessary. The aim of this case report is to highlight the importance of intraoperative echocardiography as a useful tool in patients suffering from refractory hemodynamic instability no otherwise explained.Case report
A 41 year‐old woman suffered a car accident. At the emergency department, no abnormalities were found in ECG or chest X‐ray. Abdominal ultrasound revealed the presence of abdominal free liquid and the patient was submitted to urgent exploratory laparotomy. Nevertheless, she persisted suffering arterial hypotension and metabolic acidosis. Looking for the reason of her hemodynamic instability, intraoperative transthoracic echocardiography was performed, finding out the presence of pericardial effusion. Once the cardiac surgeon extracted pericardial clots, patient's situation improved clinically and analytically.Conclusion
Every anesthesiologist should be able to use the intraoperative echocardiography as an effective tool in order to establish the appropriate measures to promote the survival of patients suffering severe trauma. 相似文献9.
Ali Mobasheri Csaba Matta Ilona Uzielienè Emma Budd Pablo Martín-Vasallo Eiva Bernotiene 《Joint, bone, spine : revue du rhumatisme》2019,86(1):29-35
Chondrocytes are the main cells in the extracellular matrix (ECM) of articular cartilage and possess a highly differentiated phenotype that is the hallmark of the unique physiological functions of this specialised load-bearing connective tissue. The plasma membrane of articular chondrocytes contains a rich and diverse complement of membrane proteins, known as the membranome, which defines the cell surface phenotype of the cells. The membranome is a key target of pharmacological agents and is important for chondrocyte function. It includes channels, transporters, enzymes, receptors, and anchors for intracellular, cytoskeletal and ECM proteins and other macromolecular complexes. The chondrocyte channelome is a sub-compartment of the membranome and includes a complete set of ion channels and porins expressed in these cells. Many of these are multi-functional proteins with “moonlighting” roles, serving as channels, receptors and signalling components of larger molecular assemblies. The aim of this review is to summarise our current knowledge of the fundamental aspects of the chondrocyte channelome, discuss its relevance to cartilage biology and highlight its possible role in the pathogenesis of osteoarthritis (OA). Excessive and inappropriate mechanical loads, an inflammatory micro-environment, alternative splicing of channel components or accumulation of basic calcium phosphate crystals can result in an altered chondrocyte channelome impairing its function. Alterations in Ca2+ signalling may lead to defective synthesis of ECM macromolecules and aggravated catabolic responses in chondrocytes, which is an important and relatively unexplored aspect of the complex and poorly understood mechanism of OA development. 相似文献
10.