全文获取类型
收费全文 | 231篇 |
免费 | 19篇 |
专业分类
儿科学 | 10篇 |
基础医学 | 50篇 |
临床医学 | 11篇 |
内科学 | 43篇 |
皮肤病学 | 2篇 |
神经病学 | 102篇 |
特种医学 | 7篇 |
外科学 | 13篇 |
预防医学 | 6篇 |
药学 | 6篇 |
出版年
2021年 | 5篇 |
2019年 | 4篇 |
2018年 | 2篇 |
2017年 | 2篇 |
2013年 | 5篇 |
2012年 | 8篇 |
2011年 | 4篇 |
2010年 | 6篇 |
2009年 | 3篇 |
2008年 | 10篇 |
2007年 | 8篇 |
2006年 | 7篇 |
2005年 | 10篇 |
2004年 | 13篇 |
2003年 | 4篇 |
2002年 | 5篇 |
2001年 | 3篇 |
2000年 | 13篇 |
1999年 | 7篇 |
1998年 | 2篇 |
1997年 | 2篇 |
1996年 | 3篇 |
1995年 | 4篇 |
1994年 | 4篇 |
1993年 | 3篇 |
1992年 | 15篇 |
1991年 | 14篇 |
1990年 | 9篇 |
1989年 | 11篇 |
1988年 | 4篇 |
1987年 | 10篇 |
1986年 | 7篇 |
1985年 | 3篇 |
1983年 | 2篇 |
1980年 | 2篇 |
1979年 | 2篇 |
1978年 | 2篇 |
1977年 | 2篇 |
1974年 | 4篇 |
1972年 | 2篇 |
1969年 | 4篇 |
1968年 | 1篇 |
1967年 | 2篇 |
1966年 | 1篇 |
1965年 | 3篇 |
1940年 | 2篇 |
1939年 | 1篇 |
1933年 | 2篇 |
1932年 | 1篇 |
1905年 | 1篇 |
排序方式: 共有250条查询结果,搜索用时 15 毫秒
61.
62.
63.
C Pozzilli D Passafiume S Bernardi P Pantano C Incoccia S Bastianello L Bozzao G L Lenzi C Fieschi 《Journal of neurology, neurosurgery, and psychiatry》1991,54(2):110-115
Seventeen patients with relapsing remitting multiple sclerosis (MS) and mild physical disability had neuropsychological testing, magnetic resonance imaging (MRI) and single photon emission computerised tomography (SPECT) using technetium 99m (99mTc) hexamethyl-propyleneamine oxime (HMPAO). Performance in verbal fluency, naming and memory testing appeared to be impaired in MS patients compared with 17 age-sex and education matched normal controls. Weighted periventricular and confluent lesion scores and the width of the third ventricle, proved to be the most sensitive MRI measures in differentiating more cognitively impaired patients from those who were relatively unimpaired. Ratios of regional to whole brain activity, measured by SPECT, showed significant reduction in the frontal lobes and in the left temporal lobe of MS patients. A relationship was found between left temporal abnormality in 99mTc-HMPAO uptake and deficit in verbal fluency and verbal memory. Finally, asymmetrical lobar activity indicated a predominant left rather than right temporo-parietal involvement. 相似文献
64.
Fieschi C. Orzi F. Pocchiari M. Nardini M. Rocchi F. Asher D. Gibbs C. Gajdusek D. 《Neurological sciences》1983,4(1):61-64
Neurological Sciences - Two cases of histopathologically documented Creutzfeldt-Jakob disease were observed in the same area of the province of Siena in 1974–1975. The transmission of the... 相似文献
65.
66.
67.
68.
69.
Remus N El Baghdadi J Fieschi C Feinberg J Quintin T Chentoufi M Schurr E Benslimane A Casanova JL Abel L 《The Journal of infectious diseases》2004,190(3):580-587
Five disease-causing genes, including the IL12RB1 gene that encodes the beta 1 chain of the receptor for interleukin (IL)-12 (IL-12R beta 1), are known to be associated with the syndrome of Mendelian susceptibility to mycobacterial diseases. Some IL-12R beta 1-deficient patients present with tuberculosis as the only clinical phenotype. A comprehensive genetic study of IL12RB1 was conducted among 101 Moroccan families, including 157 offspring (age, >15 years) who had culture-positive pulmonary tuberculosis (PTB). The promoter, exons, and flanking intron regions of IL12RB1 in 40 randomly selected patients with PTB were entirely sequenced, leading to the detection of 19 variants (including 10 novel mutations). Blood cells obtained from individuals who were homozygous for any of the 13 most common variants responded to IL-12, indicating that these polymorphisms were not loss-of-function mutations. By use of a family-based study, 2 promoter polymorphisms that were in strong linkage disequilibrium were found to be associated with PTB, especially -2C-->T (odds ratio for CT or TT vs. CC, 2.69 [95% confidence interval, 1.19-6.09]). This result suggests that IL12RB1 polymorphisms might influence the risk of development of PTB in adults. 相似文献
70.