全文获取类型
收费全文 | 495篇 |
免费 | 26篇 |
国内免费 | 5篇 |
专业分类
耳鼻咽喉 | 1篇 |
儿科学 | 9篇 |
妇产科学 | 13篇 |
基础医学 | 74篇 |
口腔科学 | 7篇 |
临床医学 | 49篇 |
内科学 | 88篇 |
皮肤病学 | 6篇 |
神经病学 | 118篇 |
特种医学 | 33篇 |
外科学 | 49篇 |
预防医学 | 23篇 |
药学 | 24篇 |
肿瘤学 | 32篇 |
出版年
2023年 | 4篇 |
2022年 | 2篇 |
2021年 | 9篇 |
2020年 | 5篇 |
2019年 | 10篇 |
2018年 | 7篇 |
2017年 | 8篇 |
2016年 | 7篇 |
2015年 | 15篇 |
2014年 | 15篇 |
2013年 | 16篇 |
2012年 | 36篇 |
2011年 | 30篇 |
2010年 | 14篇 |
2009年 | 18篇 |
2008年 | 24篇 |
2007年 | 26篇 |
2006年 | 28篇 |
2005年 | 28篇 |
2004年 | 19篇 |
2003年 | 16篇 |
2002年 | 10篇 |
2001年 | 14篇 |
2000年 | 11篇 |
1999年 | 7篇 |
1998年 | 3篇 |
1997年 | 2篇 |
1996年 | 4篇 |
1995年 | 8篇 |
1994年 | 6篇 |
1993年 | 7篇 |
1992年 | 11篇 |
1991年 | 10篇 |
1990年 | 3篇 |
1989年 | 13篇 |
1988年 | 12篇 |
1987年 | 7篇 |
1986年 | 12篇 |
1985年 | 9篇 |
1984年 | 8篇 |
1983年 | 3篇 |
1979年 | 7篇 |
1975年 | 3篇 |
1974年 | 4篇 |
1972年 | 4篇 |
1971年 | 1篇 |
1969年 | 2篇 |
1968年 | 1篇 |
1967年 | 1篇 |
1966年 | 1篇 |
排序方式: 共有526条查询结果,搜索用时 234 毫秒
1.
2.
Prognostic significance of epidermal growth factor receptor overexpression in pancreas cancer and nodal metastasis 下载免费PDF全文
3.
Miscioscia Alessandro Puthenparampil Marco Miante Silvia Pengo Marta Rinaldi Francesca Perini Paola Gallo Paolo 《Journal of neurology》2022,269(10):5436-5442
Journal of Neurology - Ocrelizumab was found to decrease brain atrophy rate in primary progressive multiple sclerosis (PPMS), but no data are currently available on the effect of ocrelizumab on... 相似文献
4.
5.
Gitana Scozzari Renza Trapani Mauro Toppino Mario Morino 《Surgery for obesity and related diseases》2013,9(1):133-142
BackgroundBecause the number of patients with a previous bariatric procedure continues to rise, it is advisable for bariatric surgeons to know how to manage the rare event of the development of an esophagogastric cancer. The aim of the study was to perform a systematic review of all reported cases of esophagogastric cancers after bariatric surgery.MethodsSystematic review of English and French written literature in MEDLINE and EMBASE database.ResultsGlobally, 28 articles describing 33 patients were retrieved. Neoplasms were diagnosed at a mean of 8.5 years after bariatric surgery (range 2 months–29 years). There were 11 esophageal and 22 gastric cancers; although adenocarcinoma represented most cases (90.6%), a tubulovillous adenoma with high-grade atypia, an intramural gastrointestinal stromal tumor, and a diffuse large B-cell lymphoma of the gastric fundus were also reported. Node involvement was reported in 14 cases, and distal metastases in 5. The most frequently reported symptoms were dysphagia and food intolerance, vomiting, epigastric pain, and weight loss. Surgery was performed in 28 patients, although 4 underwent only chemotherapy and/or radiotherapy and 1 received palliative care. Reported mortality rate was 48.1%.ConclusionsTo date, it is not possible to quantify the incidence of esophagogastric cancer after bariatric surgery because of the paucity of reported data. Nevertheless, because the main concern is the delay in diagnosis, it is of critical importance to carefully evaluate any new or modified upper digestive tract symptom occurring during bariatric surgery follow-up. 相似文献
6.
7.
Cardiac resynchronization therapy: gender related differences in left ventricular reverse remodeling
Lilli A Ricciardi G Porciani MC Perini AP Pieragnoli P Musilli N Colella A Del Pace S Michelucci A Turreni F Sassara M Achilli A Barold SS Padeletti L 《Pacing and clinical electrophysiology : PACE》2007,30(11):1349-1355
AIM: Gender related differences in epidemiology, treatment, and prognosis of heart failure (HF) have been reported. We examined the sex influence in patients treated with cardiac resynchronization therapy (CRT). METHODS AND RESULTS: Out of 334 consecutive HF patients (19.7% women) who underwent CRT, 195 patients reached clinical and echocardiographic evaluation at six and 12 months and were selected for analysis. A reduction in left ventricular (LV) end-diastolic volume/m(2) (EDVi) and end systolic volume/m(2) (ESVi) was evident in the overall population at six months (P < 0.001) and from six to 12 months (P < 0.001). Compared to men, women showed significantly greater changes in LV volumes at mid (P < 0.05) and long-term (P < 0.001) follow-up and a significantly higher LV ejection fraction (EF) (40.8 +/- 12.3 vs 34.1 +/- 10.1, P < 0.01) at one year. Multiple regression analysis, including several demographic and clinical parameters, revealed that female gender is independently associated with greater reduction in LV ESVi. At the 12-month follow-up, the proportion of responders (defined in terms of ESV reduction by at least 10%) was higher in women than in men (76.1% vs 59.3%, P < 0.05). CONCLUSIONS: CRT induced a gender specific LV remodeling response. 相似文献
8.
Immunoblots of several urinary low-molecular-mass proteins can be very useful in investigations of pathological proteinuria. However, use of certain commercial antisera in such procedures leads to artifacts corresponding to nonspecific bands; e.g., immunoglobulins from nonimmunized rabbit serum may bind to human urinary proteins, and this binding is not inhibited by Triton X-100. We have developed a procedure to improve the specificity of detection of urinary low-Mr proteins separated by sodium dodecyl sulfate-polyacrylamide gel electrophoresis, by immunoblotting with commercial antisera: we treat the protein blot with a mixture of mercaptoethanol and sodium dodecyl sulfate before incubation with the first antiserum. This allows direct use of commercial antisera without prior absorption of contaminating antibodies. 相似文献
9.
10.