全文获取类型
收费全文 | 144篇 |
免费 | 5篇 |
国内免费 | 5篇 |
专业分类
儿科学 | 3篇 |
基础医学 | 12篇 |
临床医学 | 3篇 |
内科学 | 75篇 |
皮肤病学 | 1篇 |
神经病学 | 4篇 |
特种医学 | 1篇 |
外科学 | 14篇 |
预防医学 | 6篇 |
药学 | 11篇 |
肿瘤学 | 24篇 |
出版年
2023年 | 1篇 |
2022年 | 1篇 |
2021年 | 8篇 |
2020年 | 5篇 |
2019年 | 6篇 |
2018年 | 7篇 |
2017年 | 4篇 |
2016年 | 2篇 |
2015年 | 3篇 |
2014年 | 8篇 |
2013年 | 6篇 |
2012年 | 12篇 |
2011年 | 17篇 |
2010年 | 6篇 |
2009年 | 6篇 |
2008年 | 13篇 |
2007年 | 9篇 |
2006年 | 7篇 |
2005年 | 11篇 |
2004年 | 4篇 |
2003年 | 4篇 |
2002年 | 4篇 |
2000年 | 1篇 |
1998年 | 1篇 |
1992年 | 2篇 |
1991年 | 1篇 |
1989年 | 1篇 |
1987年 | 1篇 |
1986年 | 1篇 |
1985年 | 1篇 |
1974年 | 1篇 |
排序方式: 共有154条查询结果,搜索用时 15 毫秒
151.
Inflammatory bowel disease(IBD) is a chronic condition with a pathogenic background that involves both genetic and environmental factors.Although important progress has been made regarding the former in the last decade,scarce knowledge is available for the latter.In this sense,smoking remains the most important environmental factor in IBD.Active smoking increases the risk of developing Crohn's disease(CD).Moreover,CD patients who start or continue smoking after disease diagnosis are at risk for poorer outco... 相似文献
152.
Background Endoscopic snare papillectomy is increasingly performed with curative intent for benign papillary tumors. This study aimed
to evaluate the outcome of endoscopic resection for ampullary tumors at a single center.
Methods All ampullary tumors without macroscopic features of malignancy identified by the endoscopic retrograde cholangiopancreatography
(ERCP) from January 1995 to February 2007 were included in the study. Papillectomy was performed by snare resection using
electrocautery. Argon plasma coagulation was effective for fulguration of small tissue remnants not amenable to snare resection.
Results Of the 21 patients (9 men and 12 women; mean age, 67.2 ± 14.3 years) evaluated, 11 had adenoma (7 had low-grade dysplasia
[LGD] and 4 had high-grade dysplasia [HGD]), and 10 had carcinoma. All the patients underwent papillectomy. Of the 21 patients,
18 had extraductal growth or minimal intraductal growth, and 3 had extensive intraductal growth. The endoscopic complications
(23.8%) included one case of mild bleeding, two cases of mild pancreatitis, and two cases of moderate pancreatitis. After
papillectomy, 15 patients underwent Whipple procedures (endoscopic failure, 74.1%), including 3 patients with extensive intraductal
growth (complete removal of the lesion impossible), 9 patients with carcinoma beyond the mucosal layer, and 3 patients with
recurrence treated surgically. Endoscopic success (28.5%) was obtained for the remaining six patients (4 with LGD and 2 with
HGD). Papillectomy was determined to be curative after a mean follow-up period of 15.9 ± 14.9 months.
Conclusions In the hands of an experienced endoscopist, endoscopic papillectomy is a clinically effective treatment for ampullary tumors
without invasive neoplasia. Evaluation of a prepapillectomy tumor extension is an important criterion for assessment of endoscopic
success. 相似文献
153.
154.
Hernández L Torrella M Roger N Llunell A Ballester E Quinto L Serrano M Masa F Montserrat JM 《Chest》2007,132(6):1853-1857
BACKGROUND: When a disorder is as prevalent as sleep apnea-hypopnea syndrome (SAHS), different medical levels and approaches should be involved in facilitating the diagnosis, at least, of patients with symptoms that disrupt social or working life, and of risk groups such as professional drivers. We sought to analyze the degree of concordance between management and treatment decisions for SAHS patients at sleep reference centers (RCs) and at non-RCs (NRCs). MATERIALS AND METHODS: Eighty-eight consecutive patients with suspected SAHS were referred by family doctors to the NRC. The patients were studied randomly at the RC, using full polysomnography, and at the NRC, employing respiratory polygraphy. The concordance in the therapeutic approach between both centers was analyzed via the outcomes, and the physiologic variables of the sleep studies were also evaluated. RESULTS: The concordance in the final clinical decision was substantial. There was a good agreement with respect to apnea-hypopnea index as a categoric variable and as a continuous variable. CONCLUSIONS: These results suggest that respiratory physicians with simple sleep studies are able to manage a large number of patients with SAHS. Trial registration: Clinicaltrials.gov Identifier: NCT 00424658. 相似文献