全文获取类型
收费全文 | 71099篇 |
免费 | 44272篇 |
国内免费 | 1篇 |
专业分类
耳鼻咽喉 | 1475篇 |
儿科学 | 4177篇 |
妇产科学 | 492篇 |
基础医学 | 15196篇 |
口腔科学 | 5033篇 |
临床医学 | 12079篇 |
内科学 | 22383篇 |
皮肤病学 | 7424篇 |
神经病学 | 13055篇 |
特种医学 | 2108篇 |
外科学 | 13441篇 |
综合类 | 7篇 |
一般理论 | 21篇 |
预防医学 | 3993篇 |
眼科学 | 1212篇 |
药学 | 5389篇 |
中国医学 | 1010篇 |
肿瘤学 | 6877篇 |
出版年
2024年 | 1篇 |
2023年 | 18篇 |
2022年 | 29篇 |
2021年 | 1224篇 |
2020年 | 5027篇 |
2019年 | 10776篇 |
2018年 | 10031篇 |
2017年 | 11411篇 |
2016年 | 12041篇 |
2015年 | 11870篇 |
2014年 | 11743篇 |
2013年 | 12193篇 |
2012年 | 3907篇 |
2011年 | 3814篇 |
2010年 | 8789篇 |
2009年 | 5158篇 |
2008年 | 1863篇 |
2007年 | 702篇 |
2006年 | 750篇 |
2005年 | 527篇 |
2004年 | 550篇 |
2003年 | 568篇 |
2002年 | 666篇 |
2001年 | 738篇 |
2000年 | 662篇 |
1999年 | 233篇 |
1998年 | 16篇 |
1997年 | 9篇 |
1996年 | 12篇 |
1995年 | 8篇 |
1994年 | 10篇 |
1993年 | 5篇 |
1992年 | 8篇 |
1991年 | 4篇 |
1990年 | 1篇 |
1989年 | 3篇 |
1982年 | 1篇 |
1981年 | 1篇 |
1980年 | 1篇 |
1978年 | 1篇 |
1968年 | 1篇 |
排序方式: 共有10000条查询结果,搜索用时 34 毫秒
161.
162.
163.
164.
165.
166.
Bryan E.K. Guevara Suhail Saleem Wan‐Ting Chen Pa‐Fan Hsiao Yu‐Hung Wu 《Journal of cutaneous pathology》2019,46(5):347-352
Lucio phenomenon is an atypical reaction of leprosy, characterized by vasculitic lesions that can mimic antiphospholipid syndrome (APS) clinically. Distinguishing the two can be difficult as antiphospholipid autoantibodies may be present in patients with leprosy. We report on a 32‐year‐old female patient presenting with a sudden onset of fever, hemorrhagic bullae, and skin necrosis on her lower legs. She was treated for APS due to the presence of antiphospholipid antibodies but had an inadequate response. A skin biopsy revealed thrombotic vasculopathy and necrotizing vasculitis associated with aggregation of foam cells in the perivascular area and subcutis, with acid‐fast bacilli in the histiocytes and blood vessel walls. Direct immunofluorescence showed IgM, C3, and fibrinogen deposition in the superficial and deep dermal blood vessels. The pathology confirmed the diagnosis of Lucio phenomenon, and appropriate therapy was given. It is essential to evaluate the patient comprehensively, including clinical, serological, and pathological aspects, to obtain the correct diagnosis. 相似文献
167.
168.
Victoria Alegría‐Landa Heinz Kutzner Luis Requena 《Journal of cutaneous pathology》2019,46(11):867-871
Carcinosarcomas are biphasic tumors composed of admixed malignant epithelial and mesenchymal components. Numerous terms have been used to name such neoplasms; therefore, terminological confusion is frequent. Most examples of carcinosarcomas are encountered in non‐cutaneous sites, with approximately 100 cases of cutaneous carcinosarcomas reported so far in the English literature. Although different theories have been suggested to explain the occurrence of these peculiar neoplasms, histogenetic mechanisms should be better hypothesized depending on each individual case. Even though prognosis tends to be related to the specific components of the lesion, especially the epithelial one, it seems that cases of cutaneous localization usually have a better outcome. We report an exceedingly rare case of syringocystadenocarcinoma papilliferum which showed an atypical stroma with sarcomatoid appearance, and highlight that the terminology used for this spectrum of lesions is disorganized and confusing. 相似文献
169.
170.