全文获取类型
收费全文 | 4182篇 |
免费 | 216篇 |
国内免费 | 20篇 |
专业分类
耳鼻咽喉 | 24篇 |
儿科学 | 90篇 |
妇产科学 | 109篇 |
基础医学 | 393篇 |
口腔科学 | 101篇 |
临床医学 | 331篇 |
内科学 | 1037篇 |
皮肤病学 | 42篇 |
神经病学 | 152篇 |
特种医学 | 188篇 |
外国民族医学 | 1篇 |
外科学 | 770篇 |
综合类 | 117篇 |
一般理论 | 3篇 |
预防医学 | 241篇 |
眼科学 | 130篇 |
药学 | 337篇 |
中国医学 | 13篇 |
肿瘤学 | 339篇 |
出版年
2023年 | 38篇 |
2022年 | 111篇 |
2021年 | 231篇 |
2020年 | 97篇 |
2019年 | 133篇 |
2018年 | 173篇 |
2017年 | 91篇 |
2016年 | 88篇 |
2015年 | 119篇 |
2014年 | 162篇 |
2013年 | 193篇 |
2012年 | 298篇 |
2011年 | 289篇 |
2010年 | 188篇 |
2009年 | 146篇 |
2008年 | 241篇 |
2007年 | 250篇 |
2006年 | 229篇 |
2005年 | 229篇 |
2004年 | 158篇 |
2003年 | 157篇 |
2002年 | 151篇 |
2001年 | 61篇 |
2000年 | 72篇 |
1999年 | 46篇 |
1998年 | 27篇 |
1997年 | 18篇 |
1996年 | 12篇 |
1995年 | 13篇 |
1994年 | 11篇 |
1993年 | 19篇 |
1992年 | 42篇 |
1991年 | 41篇 |
1990年 | 33篇 |
1989年 | 22篇 |
1988年 | 24篇 |
1987年 | 17篇 |
1986年 | 28篇 |
1985年 | 13篇 |
1984年 | 18篇 |
1983年 | 12篇 |
1979年 | 7篇 |
1978年 | 8篇 |
1977年 | 13篇 |
1976年 | 7篇 |
1975年 | 7篇 |
1974年 | 8篇 |
1970年 | 10篇 |
1969年 | 11篇 |
1968年 | 7篇 |
排序方式: 共有4418条查询结果,搜索用时 46 毫秒
51.
Minhaj S. Khaja Alan H. Matsumoto Wael E. Saad 《Cardiovascular and interventional radiology》2014,37(5):1137-1148
Vascular complications after solid-organ transplantation are not uncommon and may lead to graft dysfunction and ultimately graft loss. A thorough understanding of the surgical anatomy, etiologies, and types of vascular complications, their presentation, and the options for management are important for managing these complex patients. This article reviews the basic surgical anatomy, vascular complications, and endovascular management options of vascular complications in patients with renal transplants. 相似文献
52.
53.
Ismail Lotfy Mohamad Khalid I. Elsayh Hanaa A. Mohammad Khaled Saad Asmaa M. Zahran Alameldin M. Abdallah M. S. K. Tawfeek Eman M. Monazea 《European journal of pediatrics》2014,173(6):815-818
Scorpion envenomation is a health problem in children in tropical and subtropical regions. The aim of this study was to evaluate demographic and clinical characteristics as well as outcomes in referred children to Assiut University Children Hospital during the year 2012 with a history of scorpion sting. The medical files of these patients were reviewed retrospectively for demographic data, time and site of biting, and clinical manifestations. Laboratory investigations of the patients were reviewed for complete blood count (CBC), liver function tests, creatinine phosphokinase (CPK), lactate dehydrogenase (LDH), arterial blood gases, and serum electrolytes. Results showed 111 children with a history of scorpion sting; 69 males and 42 females with a median age of 5 years. Out of the studied patients, 53.2 % were classified as class III of clinical severity with recorded pulmonary edema in 33.3 %, cardiogenic shock in 46.8 %, and severe neurological manifestations in 22.8 %. Twelve patients (10.8 %) were classified as class II with mild systemic manifestations, and 36 % of the patients were classified as class I with only local reaction. Outcomes of these patients were discharge without sequelae in 55.8 %, discharge with sequelae in 26.1 %, and death in 18.1 %. Conclusion: more than half of stung children had a severe clinical presentation and about one fifth died. Aggressive treatment regimens are recommended for such patients to improve the outcome. 相似文献
54.
55.
56.
Gain of chromosome 1q (+1q) is one of the most common recurrent cytogenetic abnormalities in multiple myeloma (MM), occurring in approximately 40% of newly diagnosed cases. Although it is often considered a poor prognostic marker in MM, +1q has not been uniformly adopted as a high-risk cytogenetic abnormality in guidelines. Controversy exists regarding the importance of copy number, as well as whether +1q is itself a driver of poor outcomes or merely a common passenger genetic abnormality in biologically unstable disease. Although the identification of a clear pathogenic mechanism from +1q remains elusive, many genes at the 1q21 locus have been proposed to cause early progression and resistance to anti-myeloma therapy. The plethora of potential drivers suggests that +1q is not only a causative factor or poor outcomes in MM but may be targetable and/or predictive of response to novel therapies. This review will summarize our current understanding of the pathogenesis of +1q in plasma cell neoplasms, the impact of 1q copy number, identify potential genetic drivers of poor outcomes within this subset, and attempt to clarify its clinical significance and implications for the management of patients with multiple myeloma.Subject terms: Cancer genomics, Myeloma, Myeloma 相似文献
57.
58.
59.
60.