全文获取类型
收费全文 | 741篇 |
免费 | 50篇 |
国内免费 | 6篇 |
专业分类
耳鼻咽喉 | 2篇 |
儿科学 | 22篇 |
妇产科学 | 49篇 |
基础医学 | 87篇 |
口腔科学 | 9篇 |
临床医学 | 53篇 |
内科学 | 178篇 |
皮肤病学 | 8篇 |
神经病学 | 76篇 |
特种医学 | 16篇 |
外科学 | 153篇 |
综合类 | 6篇 |
预防医学 | 25篇 |
眼科学 | 3篇 |
药学 | 61篇 |
肿瘤学 | 49篇 |
出版年
2023年 | 5篇 |
2022年 | 7篇 |
2021年 | 14篇 |
2020年 | 10篇 |
2019年 | 15篇 |
2018年 | 25篇 |
2017年 | 12篇 |
2016年 | 23篇 |
2015年 | 15篇 |
2014年 | 27篇 |
2013年 | 49篇 |
2012年 | 74篇 |
2011年 | 69篇 |
2010年 | 22篇 |
2009年 | 17篇 |
2008年 | 40篇 |
2007年 | 31篇 |
2006年 | 39篇 |
2005年 | 33篇 |
2004年 | 50篇 |
2003年 | 41篇 |
2002年 | 28篇 |
2001年 | 16篇 |
2000年 | 10篇 |
1999年 | 10篇 |
1998年 | 9篇 |
1997年 | 7篇 |
1996年 | 7篇 |
1995年 | 3篇 |
1994年 | 3篇 |
1993年 | 4篇 |
1992年 | 5篇 |
1991年 | 3篇 |
1990年 | 5篇 |
1989年 | 5篇 |
1988年 | 3篇 |
1987年 | 4篇 |
1986年 | 3篇 |
1985年 | 10篇 |
1984年 | 6篇 |
1983年 | 3篇 |
1982年 | 2篇 |
1978年 | 7篇 |
1977年 | 8篇 |
1975年 | 4篇 |
1974年 | 3篇 |
1973年 | 2篇 |
1972年 | 2篇 |
1966年 | 1篇 |
1937年 | 1篇 |
排序方式: 共有797条查询结果,搜索用时 0 毫秒
31.
32.
Miklos Z. Molnar Hirohito Ichii James Lineen Clarence E. Foster rd Zoltan Mathe Jeffrey Schiff S. Joseph Kim Madeleine V. Pahl Alpesh N. Amin Kamyar Kalantar‐Zadeh Csaba P. Kovesdy 《Seminars in dialysis》2013,26(6):667-674
In the last decade, the number of patients starting dialysis after a failed kidney transplant has increased substantially. These patients appear to be different from their transplant‐naïve counterparts, and so may be the timing of dialysis therapy initiation. An increasing number of studies suggest that in transplant‐naïve patients, later dialysis initiation is associated with better outcomes. Very few data are available on timing of dialysis reinitiation in failed transplant recipients, and they suggest that an earlier return to dialysis therapy tended to be associated with worse survival, especially among healthier and younger patients and women. Failed transplant patients may also have unique issues such as continuation of immunosuppression versus withdrawal or the need for remnant allograft nephrectomy with regard to dialysis reinitiation. These patients may have a different predialysis preparation work‐up, worse blood pressure control, higher or lower serum phosphorus levels, lower serum bicarbonate concentration, and worse anemia management. The choice of dialysis modality may also represent an important question for these patients, even though there appears to be no difference in mortality between patients starting peritoneal versus hemodialysis. Finally, failed transplant patients returning to dialysis appear to have a higher mortality rate compared with transplant‐naïve incident dialysis patients, especially in the first several months of dialysis therapy. In this review, we will summarize the available data related to the timing of dialysis initiation and outcomes in failed kidney transplant patients after returning to dialysis. 相似文献
33.
Ricks J Molnar MZ Kovesdy CP Shah A Nissenson AR Williams M Kalantar-Zadeh K 《Diabetes》2012,61(3):708-715
Previous observational studies using differing methodologies have yielded inconsistent results regarding the association between glycemic control and outcomes in diabetic patients receiving maintenance hemodialysis (MHD). We examined mortality predictability of A1C and random serum glucose over time in a contemporary cohort of 54,757 diabetic MHD patients (age 63 ± 13 years, 51% men, 30% African Americans, 19% Hispanics). Adjusted all-cause death hazard ratio (HR) for baseline A1C increments of 8.0-8.9, 9.0-9.9, and ≥10%, compared with 7.0-7.9% (reference), was 1.06 (95% CI 1.01-1.12), 1.05 (0.99-1.12), and 1.19 (1.12-1.28), respectively, and for time-averaged A1C was 1.11 (1.05-1.16), 1.36 (1.27-1.45), and 1.59 (1.46-1.72). A symmetric increase in mortality also occurred with time-averaged A1C levels in the low range (6.0-6.9%, HR 1.05 [95% CI 1.01-1.08]; 5.0-5.9%, 1.08 [1.04-1.11], and ≤5%, 1.35 [1.29-1.42]) compared with 7.0-7.9% in fully adjusted models. Adjusted all-cause death HR for time-averaged blood glucose 175-199, 200-249, 250-299, and ≥300 mg/dL, compared with 150-175 mg/dL (reference), was 1.03 (95% CI 0.99-1.07), 1.14 (1.10-1.19), 1.30 (1.23-1.37), and 1.66 (1.56-1.76), respectively. Hence, poor glycemic control (A1C ≥8% or serum glucose ≥200 mg/dL) appears to be associated with high all-cause and cardiovascular death in MHD patients. Very low glycemic levels are also associated with high mortality risk. 相似文献
34.
Pascal F. Durrenberger Francesca S. Fernando Samira N. Kashefi Tim P. Bonnert Danielle Seilhean Brahim Nait-Oumesmar Andrea Schmitt Peter J. Gebicke-Haerter Peter Falkai Edna Grünblatt Miklos Palkovits Thomas Arzberger Hans Kretzschmar David T. Dexter Richard Reynolds 《Journal of neural transmission (Vienna, Austria : 1996)》2015,122(7):1055-1068
35.
Anti-inflammatory effects of the antibiotics ceftazidime and tobramycin in porcine endotoxin shock: are they really anti-inflammatory? Authors' response 总被引:1,自引:0,他引:1 下载免费PDF全文
36.
37.
Introduction and hypothesis
The safety and early efficacy of a new technique to treat cystocele and/or concomitant apical prolapse through a single vaginal incision with a lightweight mesh anchored apically bilaterally to the sacrospinous ligaments is reported. 相似文献38.
39.
40.