全文获取类型
收费全文 | 4158篇 |
免费 | 269篇 |
国内免费 | 9篇 |
专业分类
耳鼻咽喉 | 54篇 |
儿科学 | 161篇 |
妇产科学 | 131篇 |
基础医学 | 512篇 |
口腔科学 | 312篇 |
临床医学 | 278篇 |
内科学 | 795篇 |
皮肤病学 | 83篇 |
神经病学 | 245篇 |
特种医学 | 188篇 |
外国民族医学 | 1篇 |
外科学 | 476篇 |
综合类 | 60篇 |
一般理论 | 1篇 |
预防医学 | 628篇 |
眼科学 | 60篇 |
药学 | 289篇 |
中国医学 | 37篇 |
肿瘤学 | 125篇 |
出版年
2023年 | 31篇 |
2022年 | 67篇 |
2021年 | 133篇 |
2020年 | 90篇 |
2019年 | 120篇 |
2018年 | 139篇 |
2017年 | 89篇 |
2016年 | 117篇 |
2015年 | 129篇 |
2014年 | 185篇 |
2013年 | 181篇 |
2012年 | 281篇 |
2011年 | 288篇 |
2010年 | 218篇 |
2009年 | 148篇 |
2008年 | 235篇 |
2007年 | 229篇 |
2006年 | 186篇 |
2005年 | 164篇 |
2004年 | 145篇 |
2003年 | 139篇 |
2002年 | 96篇 |
2001年 | 109篇 |
2000年 | 87篇 |
1999年 | 83篇 |
1998年 | 52篇 |
1997年 | 50篇 |
1996年 | 57篇 |
1995年 | 51篇 |
1994年 | 30篇 |
1993年 | 22篇 |
1992年 | 34篇 |
1991年 | 31篇 |
1990年 | 44篇 |
1989年 | 34篇 |
1988年 | 28篇 |
1987年 | 35篇 |
1986年 | 31篇 |
1985年 | 29篇 |
1984年 | 28篇 |
1983年 | 18篇 |
1982年 | 13篇 |
1981年 | 14篇 |
1980年 | 19篇 |
1979年 | 13篇 |
1978年 | 22篇 |
1976年 | 8篇 |
1975年 | 13篇 |
1970年 | 10篇 |
1967年 | 8篇 |
排序方式: 共有4436条查询结果,搜索用时 15 毫秒
1.
Iclea Rocha Gama Euclides Marinho Trindade-Filho Suzana Lima Oliveira Nassib Bezerra Bueno Isabelle Tenório Melo Cyro Rego Cabral-Junior Elenita M. Barros Jaqueline A. Galvão Wanessa S. Pereira Raphaela C. Ferreira Bruna R. Domingos Terezinha da Rocha Ataide 《Metabolic brain disease》2015,30(1):93-98
2.
3.
4.
Rubens Souza de OLIVEIRA Lanna Jamile Corrêa da COSTA Fernanda Atanaena Gon?alves de ANDRADE Wilson UIEDA Luzia Fátima Alves MARTORELLI Ana Paula de Arruda Geraldes KATAOKA Elizabeth Salbé Travassos da ROSA Pedro Fernando da Costa VASCONCELOS Armando de Souza PEREIRA Ant?nio Ismael Barros do CARMO Marcus Emanuel Barroncas FERNANDES 《Revista do Instituto de Medicina Tropical de S?o Paulo》2015,57(6):497-503
The outbreaks of rabies in humans transmitted by Desmodus rotundus in 2004 and 2005,
in the northeast of the Brazilian State of Para, eastern Amazon basin, made this a
priority area for studies on this zoonosis. Given this, the present study provides
data on this phenomenon in an urban context, in order to assess the possible
circulation of the classic rabies virus (RABV) among bat species in Capanema, a town
in the Amazon basin. Bats were collected, in 2011, with mist nets during the wet and
dry seasons. Samples of brain tissue and blood were collected for virological and
serological survey, respectively. None of the 153 brain tissue samples analyzed
tested positive for RABV infection, but 50.34% (95% CI: 45.67-55.01%) of the serum
samples analyzed were seropositive. Artibeus planirostris was the most common
species, with a high percentage of seropositive individuals (52.46%, 95% CI: 52.31
52.60%). Statistically, equal proportions of seropositive results were obtained in
the rainy and dry seasons (c2 = 0.057, d.f. = 1, p = 0.88). Significantly
higher proportions of males (55.96%, 95% CI: 48.96-62.96%) and adults (52.37%, 95%
CI: 47.35-57.39%) were seropositive. While none of the brain tissue samples tested
positive for infection, the high proportion of seropositive specimens indicates that
RABV may be widespread in this urban area. 相似文献
5.
6.
E MOLKE JENSEN K. A. THIESSEN AA. CHRISTENSEN 《Acta anaesthesiologica Scandinavica》1986,30(2):109-110
The effect of 4 mg oral naloxone on preoperative gastric volume and pH of gastric aspirate was studied in a double-blind, randomized study. Twenty patients received 10 ml of naloxone (4 mg) mixed with 10 ml of orange juice, and 20 patients received 10 ml of isotonic saline mixed with 10 ml of orange juice, 2 h before surgery. Gastric content was obtained immediately after intubation of the trachea. No significant difference in gastric volume and pH of gastric aspirate was found between the two groups. It is concluded that naloxone does not affect gastric emptying and gastric acid secretion to a degree great enough to protect against aspiration of gastric contents into the lungs. 相似文献
7.
Carbamazepine has been shown to enhance dopaminergic agonist behavioral effects, but not to displace [3H]spiroperidol binding. To verify if carbamazepine acts presynaptically on dopaminergic neurons, reuptake and release of [3H]dopamine were measured in rat striatal slices in vitro. It was observed that carbamazepine blocked 20% of the reuptake of [3H]dopamine, while cocaine blocked 82% of the reuptake, compared with control. Carbamazepine released 62% and tyramine released 92% of the accumulated [3H]dopamine, compared with control. It was concluded that carbamazepine acts presynaptically on striatal neurons, mainly through enhancement of dopamine release. This finding can be related to some behavioral effects described for carbamazepine; however, the importance of its effects in epileptic and manic-depressive patients remains to be clarified. 相似文献
8.
9.
10.