全文获取类型
收费全文 | 2764篇 |
免费 | 164篇 |
国内免费 | 17篇 |
专业分类
耳鼻咽喉 | 9篇 |
儿科学 | 145篇 |
妇产科学 | 32篇 |
基础医学 | 242篇 |
口腔科学 | 199篇 |
临床医学 | 311篇 |
内科学 | 750篇 |
皮肤病学 | 23篇 |
神经病学 | 222篇 |
特种医学 | 256篇 |
外科学 | 299篇 |
综合类 | 40篇 |
预防医学 | 98篇 |
眼科学 | 12篇 |
药学 | 133篇 |
1篇 | |
中国医学 | 3篇 |
肿瘤学 | 170篇 |
出版年
2023年 | 15篇 |
2022年 | 11篇 |
2021年 | 51篇 |
2020年 | 36篇 |
2019年 | 41篇 |
2018年 | 60篇 |
2017年 | 49篇 |
2016年 | 34篇 |
2015年 | 60篇 |
2014年 | 67篇 |
2013年 | 103篇 |
2012年 | 137篇 |
2011年 | 120篇 |
2010年 | 107篇 |
2009年 | 103篇 |
2008年 | 121篇 |
2007年 | 89篇 |
2006年 | 111篇 |
2005年 | 94篇 |
2004年 | 112篇 |
2003年 | 95篇 |
2002年 | 81篇 |
2001年 | 76篇 |
2000年 | 71篇 |
1999年 | 72篇 |
1998年 | 105篇 |
1997年 | 105篇 |
1996年 | 97篇 |
1995年 | 67篇 |
1994年 | 61篇 |
1993年 | 52篇 |
1992年 | 41篇 |
1991年 | 39篇 |
1990年 | 36篇 |
1989年 | 49篇 |
1988年 | 47篇 |
1987年 | 52篇 |
1986年 | 47篇 |
1985年 | 50篇 |
1984年 | 33篇 |
1983年 | 28篇 |
1982年 | 19篇 |
1981年 | 21篇 |
1980年 | 11篇 |
1979年 | 6篇 |
1978年 | 10篇 |
1977年 | 8篇 |
1976年 | 9篇 |
1975年 | 10篇 |
1973年 | 4篇 |
排序方式: 共有2945条查询结果,搜索用时 234 毫秒
1.
PJ Commerford 《Cardiovascular journal of Africa》2015,26(4):151-Aug;26(4):151
2.
3.
Hans Bosma Martin PJ van Boxtel Gertrudis IJM Kempen Jacques ThM van Eijk Jelle Jolles 《BMC public health》2007,7(1):179
Background
The aims of this study were to examine the extent to which higher intellectual abilities protect higher socio-economic groups from functional decline and to examine whether the contribution of intellectual abilities is independent of childhood deprivation and low birth weight and other socio-economic and developmental factors in early life. 相似文献4.
Thirty-six male cocaine abusers, in withdrawal, were studied for 99 days in a double-blind design. Treatment with bromocriptine was significantly more effective than placebo in alleviating withdrawal symptoms. Adding desipramine to the bromocriptine regimen was significantly more effective than either placebo or bromocriptine alone. The authors hypothesize that these results support a model of dopamine depletion and receptor supersensitivity in cocaine withdrawal. 相似文献
5.
6.
7.
Previous reports in the literature have described correlation of increasing repeat length with severity of the phenotype, in Kennedy syndrome. We describe male siblings with different repeat lengths, with lack of expression of the phenotype in the sibling with the longer repeat length. The phenotype was identical to motor neurone disease. There is variability of expression in Kennedy syndrome and repeat length even in siblings cannot be taken as a conclusive indicator of severity. CAG repeat length cannot be used to predict the natural history of Kennedy disease. The diagnosis of Kennedy syndrome should be considered in male patients presenting with atypical motor neurone disease. 相似文献
8.
PJ Woll PhD MRCP R Pettengell PhD FRACP 《International journal of clinical practice》1997,51(2):111-115
SUMMARY The interferons are natural glycoproteins secreted in response to various stimuli, including viral infection. They have antiviral, antiproliferative and immunomodulatory effects on different target cell populations. Since recombinant human interferons have become available, they have been tested in a wide range of malignancies. They are well established in the treatment of hairy cell leukaemia, chronic myelogenous leukaemia and multiple myeloma. Although they have documented activity against lymphoma, melanoma, renal cell cancer and carcinoid tumours, their role in the treatment of these tumours is less clear. In the common solid tumours, such as lung cancer and colorectal cancer, the use of interferons remains experimental. Here we will summarise their practice applications in oncology, using randomised studies where available to establish their place in multi-modality treatment. We will not discuss their use as antiviral or immunomodulating agents in viral and autoimmune diseases, multiple sclerosis or after organ transplantation. 相似文献
9.
10.
G Canton L Giannini G Magni A Bertinaria M Cibin L Gallimberti 《Acta psychiatrica Scandinavica》1988,78(1):18-23
We investigated the relationship of locus of control and life events to outcome of treatment at 6 months in 67 patients with alcohol dependence. Outcome was less favourable in patients with pre-treatment scores indicating external locus of control than in those with internal locus of control. Furthermore, patients with relapse in the follow-up period experienced more independent life events with moderate to severe objective negative impact than those with more favourable outcome. These results suggest that locus of control may be of clinical use in formulating treatment and prognosis, and that the occurrence of life events may influence outcome. The results are discussed in relation to strategies for treatment and prevention of relapse. 相似文献