全文获取类型
收费全文 | 532篇 |
免费 | 30篇 |
国内免费 | 1篇 |
专业分类
儿科学 | 5篇 |
妇产科学 | 6篇 |
基础医学 | 58篇 |
口腔科学 | 3篇 |
临床医学 | 99篇 |
内科学 | 89篇 |
皮肤病学 | 2篇 |
神经病学 | 24篇 |
特种医学 | 11篇 |
外科学 | 15篇 |
综合类 | 26篇 |
预防医学 | 34篇 |
眼科学 | 4篇 |
药学 | 166篇 |
中国医学 | 5篇 |
肿瘤学 | 16篇 |
出版年
2023年 | 1篇 |
2021年 | 4篇 |
2020年 | 4篇 |
2019年 | 2篇 |
2018年 | 1篇 |
2016年 | 5篇 |
2015年 | 7篇 |
2014年 | 9篇 |
2013年 | 18篇 |
2012年 | 42篇 |
2011年 | 58篇 |
2010年 | 30篇 |
2009年 | 32篇 |
2008年 | 46篇 |
2007年 | 49篇 |
2006年 | 33篇 |
2005年 | 53篇 |
2004年 | 53篇 |
2003年 | 47篇 |
2002年 | 34篇 |
2001年 | 4篇 |
2000年 | 4篇 |
1999年 | 3篇 |
1998年 | 7篇 |
1997年 | 6篇 |
1996年 | 2篇 |
1995年 | 3篇 |
1994年 | 1篇 |
1989年 | 1篇 |
1986年 | 1篇 |
1982年 | 1篇 |
1930年 | 1篇 |
1919年 | 1篇 |
排序方式: 共有563条查询结果,搜索用时 15 毫秒
1.
2.
3.
4.
Fluorine-18 fluorodeoxyglucose positron emission tomography in the follow-up of differentiated thyroid cancer 总被引:4,自引:2,他引:2
Frank Grünwald Axel Schomburg Hans Bender Edzard Klemm Christian Menzel Thomas Bultmann Holger Palmedo Jürgen Ruhimann Beate Kozak Hans-Jürgen Biersack 《European journal of nuclear medicine and molecular imaging》1996,23(3):312-319
Whole-body fluorine-18 fluorodeoxyglucose (FDG) positron emission tomography (PET) imaging was performed during the follow-up of 33 patients suffering from differentiated thyroid cancer. Among them there were 26 patients with papillary and seven with follicular tumours. Primary tumour stage (pT) was pT1 in six cases, pT2 in eight cases, pT3 in three cases and pT4 in 14 cases. FDG PET was normal in 18 patients. In three patients a slightly increased metabolism was observed in the thyroid bed, assumed to be related to remnant tissue. In one case local recurrence, in ten cases lymph node metastases (one false-positive, caused by sarcoidosis) and in three cases distant metastases were found with FDG PET. In comparison with whole-body scintigraphy using iodine-131 (WBS) there were a lot of discrepancies in imaging results. Whereas three patients had distant metastases (proven with131I) and a negative FDG PET, in four cases131I-negative lymph node metastases were detectable with PET. Even in the patients with concordant staging, differences between131I and FDG were observed as to the exact lesion localization. Therefore, a coexistence of131I-positive/FDG-negative,131I-negative/FDG-positive and131I-positive/FDG-positive malignant tissue can be assumed in these patients. A higher correlation of FDG PET was observed with hexakis (2-methoxyisobutylisonitrile) technetium-99m (I) (MIBI) scintigraphy (performed in 20 cases) than with WBS. In highly differentiated tumours131I scintigraphy had a high sensitivity, whereas in poorly differentiated carcinomas FDG PET was superior. The clinical use of FDG PET can be recommended in all cases of suspected or proven recurrence and/or metastases of differentiated thyroid cancer and is particularly useful in cases with elevated serum thyroglobulin levels and negative WBS. 相似文献
5.
IntroductionIn clinical trials of the efficacy of manualtreatm ents like surgery or acupuncture,control groups are comm only given‘sham’procedures.Sham procedures,inorder to be true placebos,must be 1) in-distinguishable from the real treatm entand 2 ) inactive.In acupuncture trials,various controls for the process of insert-ing a needle and stimulating it have beenused.These include needling off point orat inappropriate points[1 ,2 ] ,pricking orscratching with blunt needle[3,4 ] ,needlingw… 相似文献
6.
7.
8.
9.
10.