首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   313篇
  免费   61篇
儿科学   4篇
基础医学   16篇
临床医学   54篇
内科学   31篇
皮肤病学   9篇
神经病学   126篇
特种医学   8篇
外科学   36篇
综合类   1篇
预防医学   70篇
眼科学   2篇
药学   9篇
肿瘤学   8篇
  2024年   1篇
  2023年   8篇
  2022年   1篇
  2021年   6篇
  2020年   7篇
  2019年   4篇
  2018年   14篇
  2017年   12篇
  2016年   16篇
  2015年   16篇
  2014年   22篇
  2013年   33篇
  2012年   10篇
  2011年   6篇
  2010年   21篇
  2009年   15篇
  2008年   7篇
  2007年   1篇
  2006年   17篇
  2005年   14篇
  2004年   2篇
  2003年   6篇
  2002年   3篇
  2001年   2篇
  2000年   6篇
  1999年   6篇
  1998年   21篇
  1997年   15篇
  1996年   16篇
  1995年   13篇
  1994年   9篇
  1993年   7篇
  1992年   3篇
  1991年   4篇
  1990年   1篇
  1989年   1篇
  1988年   2篇
  1987年   1篇
  1986年   2篇
  1985年   1篇
  1984年   1篇
  1982年   1篇
  1961年   1篇
  1959年   1篇
  1958年   4篇
  1957年   2篇
  1956年   3篇
  1955年   4篇
  1954年   5篇
排序方式: 共有374条查询结果,搜索用时 15 毫秒
1.
The concept of need and the practice of needs assessment are both subject to a wide range of interpretations, to the likely detriment of individual assessments and to multidisciplinary working. Clear definition is important for individual assessment, for the development of multidisciplinary tools and in gathering planning information. The concept of need is clarified, firstly by distinguishing between need and the difficulties that engender it, and secondly through a taxonomy of need. These assist clear definitions of both need and needs assessment when linked with a consideration of the current help a person receives and a specification of the type of help required by a person to meet their needs. Such definitions have implications for the role of needs assessment in individual assessment, service evaluation, service management and planning and in the development of multidisciplinary needs assessment tools.  相似文献   
2.
An adolescent with a history of attempted suicide who refused to involve his father in the treatment plan is presented. Issues surrounding consent to psychiatric treatment in childhood are discussed and the assessment process outlined. Contributions by primary healthcare professionals are emphasised.  相似文献   
3.
We report on two cases of women with locally advanced squamous cell carcinoma of the urethra. Patient 1 also displayed regional lymph node metastasis. Treatment comprised combined radiotherapy to 60 Gy and chemotherapy with 5-fluorouracil and cisplatin. Complete response was obtained in both patients, including the inguinal lymph nodes of Patient 1. Patient 1 experienced recurrent inguinal lymph node metastasis on the contralateral side at 42 months after initial treatment, and the same treatment was performed followed by surgical excision. Both patients remain alive with no evidence of disease, at 12 months after recurrence in Patient 1, and at 27 months after treatment in Patient 2.  相似文献   
4.
Diagnosis of Small Pancreatic Carcinoma   总被引:1,自引:0,他引:1  
A retrospective analysis was performed to evaluate the clinicalsymptoms and abnormal test findings in small pancreatic carcinoma.Five hundred and thirty-six cases of pancreatic carcinoma withthe histology of duct cell carcinoma were collected from 14medical centers in Japan. In 440 of the cases, tumor size wasmeasured at the time of laparotomy or from the resected specimen.Three hundred and seventy-seven patients (86%) had a carcinomalarger than 3.0 cm; only 30% of these were resectable. Sixty-threepatients (14%) had a carcinoma of 3.0 cm or less, with resectabilityof 97%. Detecting a tumor of "3 cm or less" with a high probabilityof resectability is the objective of early diagnosis with theresulting possibility of a cure. In most cases these small carcinomaswere found easily when obstructive jaundice was present (73%).However, the estimated occurrence of obstructive jaundice associatedwith carcinomas of 3 cm or less was only 10% among the totalcases of pancreatic carcinoma studied. Therefore, it is necessaryfor early diagnosis to detect carcinomas of 3 cm or less presentingwithout jaundice. The symptoms of small carcinoma without jaundiceare weight loss, anorexia, upper abdominal pain, back pain anda palpable abdominal mass. Among the various available examinations,endoscopic retrograde cholangiopancreatography, computerizedtomography and ultrasonography were valuable in diagnosing thesesmall carcinomas.  相似文献   
5.
6.
The flow diverter has been shown to be a safe and effective device for large cerebral aneurysms in the proximal internal carotid artery (ICA). Recently, its indication has been expanded to small- and medium-sized cerebral aneurysms in the distal segment of the ICA. In this study, we report a single-center, retrospective investigation of the safety and efficacy of the Pipeline Flex device to treat these aneurysms. Of the patients who underwent Pipeline implantation for small- and medium-sized ICA aneurysms (≤12 mm) at our hospital between July 2013 and October 2021, 102 patients with 104 aneurysms were included in this study. The mean age of the patients was 57.7 ± 12.1 years, and 94 (90.4%) were female. The mean aneurysmal dome diameter was 9.2 ± 2.3 mm, the mean neck diameter was 5.3 ± 1.6 mm, and the mean dome-to-neck ratio was 1.8 ± 0.5. Twenty-five patients (24.0%) had incorporated vessels from the aneurysm. Complete occlusion of the aneurysms was obtained in 96 patients (92.3%). There were no cases of parent artery stenosis or major stroke after the procedure. Absence of incorporated vessel from the aneurysm dome and adjunctive coil embolization are statistically significant factors indicating complete occlusion in multivariate analysis. The time to complete occlusion was determined earlier with the use of the Pipeline Shield (p = 0.0386) and with adjunctive coils (p = 0.0025). We showed that Pipeline implantation for small- and medium-sized aneurysms was safe and highly effective.  相似文献   
7.
8.
9.
10.
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号