全文获取类型
收费全文 | 58608篇 |
免费 | 3435篇 |
国内免费 | 41篇 |
专业分类
耳鼻咽喉 | 938篇 |
儿科学 | 1776篇 |
妇产科学 | 1368篇 |
基础医学 | 8691篇 |
口腔科学 | 2220篇 |
临床医学 | 5466篇 |
内科学 | 10506篇 |
皮肤病学 | 1448篇 |
神经病学 | 6264篇 |
特种医学 | 2713篇 |
外科学 | 8206篇 |
综合类 | 204篇 |
一般理论 | 32篇 |
预防医学 | 3834篇 |
眼科学 | 1188篇 |
药学 | 4069篇 |
中国医学 | 87篇 |
肿瘤学 | 3074篇 |
出版年
2023年 | 324篇 |
2022年 | 220篇 |
2021年 | 492篇 |
2020年 | 577篇 |
2019年 | 621篇 |
2018年 | 1308篇 |
2017年 | 1113篇 |
2016年 | 1451篇 |
2015年 | 1156篇 |
2014年 | 1336篇 |
2013年 | 2475篇 |
2012年 | 3120篇 |
2011年 | 3547篇 |
2010年 | 1862篇 |
2009年 | 1176篇 |
2008年 | 3540篇 |
2007年 | 3692篇 |
2006年 | 3475篇 |
2005年 | 3385篇 |
2004年 | 3249篇 |
2003年 | 3296篇 |
2002年 | 3224篇 |
2001年 | 2550篇 |
2000年 | 3272篇 |
1999年 | 1726篇 |
1998年 | 557篇 |
1997年 | 487篇 |
1996年 | 353篇 |
1995年 | 296篇 |
1994年 | 318篇 |
1993年 | 301篇 |
1992年 | 286篇 |
1991年 | 230篇 |
1990年 | 218篇 |
1989年 | 283篇 |
1988年 | 214篇 |
1987年 | 217篇 |
1986年 | 221篇 |
1985年 | 287篇 |
1984年 | 309篇 |
1983年 | 264篇 |
1982年 | 266篇 |
1981年 | 215篇 |
1980年 | 208篇 |
1979年 | 232篇 |
1978年 | 181篇 |
1977年 | 193篇 |
1976年 | 188篇 |
1975年 | 163篇 |
1973年 | 174篇 |
排序方式: 共有10000条查询结果,搜索用时 390 毫秒
991.
992.
Aleksi Reito Antti Eskelinen Timo Puolakka Jorma Pajamäki 《Archives of orthopaedic and trauma surgery》2013,133(2):267-273
The prevalence of total hip arthroplasty in young patients is small but increasing. We analyzed the results of metal-on-metal hip resurfacing (MMHR) in patients aged 40 years or less. In total 74 operations were performed on 64 patients. Mean age at operation was 33.2 years. HHS averaged 92.3 points at latest follow-up, mean UCLA activity was 8.2. Patients with comorbidity evinced lower scores in HHS, in UCLA activity and in quality of life than patients without comorbidities. Eight revisions (10.8 %) were performed, of which seven due to adverse reaction to metal debris. Seven-year survival was 90.5 %. The functional outcome of hip resurfacing in this cohort was excellent, but overall survival was unsatisfactory. Further analysis is required to verify the role of hip resurfacing among young and active patients. 相似文献
993.
994.
995.
Dr. G. Krämer 《Zeitschrift für Epileptologie》2013,26(3):175-177
996.
Klaus Geissler Eva Jäger Agnes Barna Thamer Sliwa Paul Knöbl Ilse Schwarzinger Heinz Gisslinger Peter Valent 《European journal of haematology》2016,97(6):562-567
In chronic myelomonocytic leukemia (CMML), colony‐forming units granulocyte/macrophage (CFU‐GM), which grow in vitro in the absence of exogenous growth factors, arise from the abnormal clone that is responsible for the overproduction of granulomonocytic cells. Previous in vitro findings including ours suggest that divergent molecular aberrations in CMML seem to converge within the GM‐CSF signaling pathway. As JAK2 is a sentinel kinase in this pathway, JAK2 inhibition may be an attractive treatment approach in CMML. We investigated the in vitro effects of the specific JAK2 inhibitor TG101209 on the autonomous CFU‐GM formation from peripheral blood mononuclear cells of patients with CMML. TG101209 was found to either block or strongly inhibit spontaneous CFU‐GM growth in all 10 patients tested. This inhibitory effect was dose dependent and significantly more pronounced as compared to the inhibitory effect on stimulated CFU‐GM growth from normal individuals. In a CMML patient with splenomegaly, who was treated with the JAK1/2 inhibitor ruxolitinib off label, we can demonstrate a spleen response and the disappearance of constitutional symptoms which was associated with a decrease in autonomous CFU‐GM formation ex vivo. Pharmacological JAK2 inhibition may be an interesting approach to be systematically studied in patients with CMML. 相似文献
997.
998.
999.
The existence of a data-gathering bias, in the form of jumping to conclusions, and links to paranoid ideation was investigated in Asperger syndrome (AS). People with AS (N = 30) were compared to a neurotypical control group (N = 30) on the Reading the Mind in the Eyes and the Beads tasks, with self-report measures of depression, general anxiety, social anxiety, self-consciousness and paranoid ideation. The AS group performed less well than the control group on the Reading the Mind in the Eyes Task with regard to accuracy but responded more quickly and tended to make decisions on the basis of less evidence on the Beads Task with 50 % demonstrating a clear ‘jumping to conclusions bias’, whereas none of the control group showed such a bias. Depression and general anxiety were associated with paranoid ideation but not data-gathering style, which was contrary to expectation. 相似文献
1000.