全文获取类型
收费全文 | 57999篇 |
免费 | 4482篇 |
国内免费 | 953篇 |
专业分类
耳鼻咽喉 | 399篇 |
儿科学 | 828篇 |
妇产科学 | 397篇 |
基础医学 | 3124篇 |
口腔科学 | 2772篇 |
临床医学 | 7985篇 |
内科学 | 4290篇 |
皮肤病学 | 282篇 |
神经病学 | 2716篇 |
特种医学 | 2682篇 |
外国民族医学 | 2篇 |
外科学 | 15768篇 |
综合类 | 7908篇 |
现状与发展 | 1篇 |
一般理论 | 6篇 |
预防医学 | 6320篇 |
眼科学 | 344篇 |
药学 | 4487篇 |
124篇 | |
中国医学 | 1897篇 |
肿瘤学 | 1102篇 |
出版年
2024年 | 133篇 |
2023年 | 1125篇 |
2022年 | 1801篇 |
2021年 | 2810篇 |
2020年 | 2824篇 |
2019年 | 2459篇 |
2018年 | 2300篇 |
2017年 | 2348篇 |
2016年 | 2478篇 |
2015年 | 2179篇 |
2014年 | 4326篇 |
2013年 | 4924篇 |
2012年 | 3550篇 |
2011年 | 3902篇 |
2010年 | 3094篇 |
2009年 | 2977篇 |
2008年 | 2753篇 |
2007年 | 2722篇 |
2006年 | 2264篇 |
2005年 | 2156篇 |
2004年 | 1752篇 |
2003年 | 1369篇 |
2002年 | 1091篇 |
2001年 | 1006篇 |
2000年 | 760篇 |
1999年 | 692篇 |
1998年 | 564篇 |
1997年 | 490篇 |
1996年 | 408篇 |
1995年 | 331篇 |
1994年 | 296篇 |
1993年 | 241篇 |
1992年 | 193篇 |
1991年 | 157篇 |
1990年 | 117篇 |
1989年 | 99篇 |
1988年 | 76篇 |
1987年 | 90篇 |
1986年 | 73篇 |
1985年 | 87篇 |
1984年 | 65篇 |
1983年 | 57篇 |
1982年 | 65篇 |
1981年 | 56篇 |
1980年 | 37篇 |
1979年 | 33篇 |
1978年 | 26篇 |
1977年 | 20篇 |
1976年 | 19篇 |
1975年 | 22篇 |
排序方式: 共有10000条查询结果,搜索用时 93 毫秒
91.
《Neurocirugía (Asturias, Spain)》2022,33(5):237-241
Ewing sarcoma (ES) is a rare primary neoplasm in the lumbar adult spine and may mimic a benign tumor. In this case, after a patient's three-month history of lower back pain and rapidly progressing leg numbness and weakness, magnetic resonance imaging (MRI) showed a mass in the third lumbar vertebra. At a two-month follow-up, imaging showed a fracture, compression and lesion enlargement. Decompression and fixation confirmed ES, and the patient began combined radiotherapy and chemotherapy. Two months postoperatively, residual ES was suspected on MRI. The patient underwent a second surgery, and histopathology confirmed necrosis. A six-month follow-up after the first surgery showed no tumor recurrence. This case supports the inclusion of ES in the differential diagnosis of pathologic spinal fracture. Early decompression and spinal fixation are critical for preserving neurologic and spinal functions in ES complicated by a compression fracture. Combined adjuvant radiotherapy and chemotherapy remain the standard therapeutic strategy. 相似文献
92.
ABSTRACTTake-Away Points:1. Geriatric palliative care requires integrating the disciplines of hospital medicine and palliative care in pursuit of delivering comprehensive, whole-person care to aging patients with serious illnesses.2. Older adults have unique palliative care needs compared to the general population, different prevalence and intensity of symptoms, more frequent neuropsychiatric challenges, increased social needs, distinct spiritual, religious, and cultural considerations, and complex medicolegal and ethical issues.3. Hospital-based palliative care interdisciplinary teams can take many forms and provide high-quality, goal-concordant care to older adults and their families. 相似文献
93.
94.
《Journal of Clinical Orthopaedics and Trauma》2021,12(6):983-988
PurposeInjuries of both pelvic ring and acetabulum as rare very few articles are available in literature. There are no set protocols in defining the injury let alone defining early and definitive management strategies. This article is an attempt to encompass all available data to give us guidelines in managing these injuries.MethodsAn extensive literature review was carried out on PubMed/Medline, google scholar and Embase databases was done with the eligibility criteria of 1) Case series with a minimum of 20 cases. 2) The patient’s outcome reported. 3) Full article available. 4) Article in English. 5) Minimum Jadad score of 3. As per PRISMA guidelines the search was done and gradually filtered down to relevant articles which were 8 in number.ResultsThe incidence of these injuries range from 5 to 16%. The transverse acetabular fracture pattern is the commonest followed by associated both column fractures. There is equal propensity of Anteroposterior compression and lateral compression injuries. The injury mechanism appears to transmitted lateral force from the greater trochanter inwards with an implosion injury causing acetabular and pelvic injury as a continuum. The initial management is similar to managing pelvic ring injuries with focus on patient resuscitation, hemodynamic stabilization and temporary stabilization. The injury severity score and the mortality rates are comparable to isolated unstable pelvic ring injuries. Definitive management focuses on fixing the posterior pelvic ring first followed by the acetabular fracture and then the anterior pelvic ring. The displacement rates and outcome is worse than isolated acetabular injuries or pelvic injuries.ConclusionCombined Pelvic and acetabular injuries are complex injuries which need to be managed initially as we manage pelvic injury and later as we fix as an acetabular fracture meticulously. 相似文献
95.
Philippe A. Eigenmann Motohiro Ebisawa Matthew Greenhawt Jonathan O’B Hourihane Tamara T. Perry Benjamin C. Remington Robert A. Wood 《Pediatric allergy and immunology》2021,32(4):658-666
Risk is a concept inherent in every medical procedure. It can be defined as the probability of an adverse event in a defined population over a specified period of time. In the frame of food allergy management, it might be related to a diagnostic procedure, a treatment, or the consumption of foods. The risk of an adverse event can also be augmented by individual factors. This rostrum article discusses various aspects faced by children with food allergies in the light of risk, and their practical implications. Identifying personal risks for severe reaction, such as unstable asthma, and correcting them whenever possible also contribute to a reduction of the risk inherent to food allergy. Among the facets discussed, oral food challenges (OFC) are the most common diagnostic procedures implying an inherent risk. The risk of OFCs can be minimized by correct indication and timing of the test, a safe setting, as well as by ensuring that the patient is otherwise well without potential stressor potentially increasing the risk of a more severe reaction. Oral immunotherapy (OIT) has been studied as a potential treatment for increasing the threshold dose for reaction, and thus reducing the risk of accidental reaction. Nevertheless, the procedure is not devoid of risk as the patients may and do often react during the course of the procedure. Ingestion of trace amounts in processed foods, mainly in community settings such as restaurants, schools, or day care, represents a potential risk of reactions, although for a minority of patients. Precautionary allergen labeling (PAL) is a widespread strategy to reduce the potential risk of reactions due to traces. However, PAL is currently inefficient due to inconsistent labeling, also not indicating a clear maximum amount possibly present in the manufactured food. Finally, cost-effectiveness needs to be considered in risk management, as many risk reduction procedures are clearly not cost-effective. 相似文献
96.
97.
98.
99.
彭秋连 《中国继续医学教育》2021,(1)
目的观察目标教学在手术室护理带教中的应用效果。方法选取2018年9月—2019年6月期间,医院手术室的48名实习护士,随机分为对照组和试验组,每组各24例。对照组行传统护理带教方法,试验组行目标教学带教。对比带教后两组考核成绩及带教满意度。结果带教后,试验组职业防护意识、风险意识、无菌观念、常见小中手术配合熟练度、常见小中手术护理要点掌握、基本工作职责及流程掌握等评分与对照组差异具有统计学意义(P<0.05)。试验组专科操作、操作测评及理论测评成绩与对照组差异具有统计学意义(P<0.05)。结论于手术室护理带教中应用目标教学,具有理想效果,有助于提升考核成绩及专业技能。 相似文献
100.
Standard cost-effectiveness models compare incremental cost increases to incremental average gains in health, commonly expressed in Quality-Adjusted Life Years (QALYs). Our research generalizes earlier models in several ways. We introduce risk aversion in Quality of Life (QoL), which leads to “willingness-to-pay” thresholds that rise with illness severity, potentially by an order of magnitude. Unlike traditional CEA analyses, which discriminate against persons with disabilities, our analysis implies that the marginal value of improving QoL rises for disabled individuals. Our model can also value the uncertain benefits of medical interventions by employing well-established analytic methods from finance. Finally, we show that traditional QALYs no longer serve as a single index of health, when consumers are risk-averse. To address this problem, we derive a generalized single-index of health outcomes—the Generalized Risk-Adjusted QALY (GRA-QALY). Earlier models of CEA that abstract from risk-aversion nest as special cases of our more general model. 相似文献