全文获取类型
收费全文 | 6176篇 |
免费 | 406篇 |
国内免费 | 16篇 |
专业分类
耳鼻咽喉 | 92篇 |
儿科学 | 132篇 |
妇产科学 | 161篇 |
基础医学 | 843篇 |
口腔科学 | 515篇 |
临床医学 | 512篇 |
内科学 | 1282篇 |
皮肤病学 | 104篇 |
神经病学 | 500篇 |
特种医学 | 131篇 |
外科学 | 736篇 |
综合类 | 23篇 |
一般理论 | 2篇 |
预防医学 | 717篇 |
眼科学 | 138篇 |
药学 | 429篇 |
中国医学 | 51篇 |
肿瘤学 | 230篇 |
出版年
2023年 | 61篇 |
2022年 | 151篇 |
2021年 | 265篇 |
2020年 | 184篇 |
2019年 | 234篇 |
2018年 | 279篇 |
2017年 | 200篇 |
2016年 | 220篇 |
2015年 | 228篇 |
2014年 | 324篇 |
2013年 | 375篇 |
2012年 | 495篇 |
2011年 | 559篇 |
2010年 | 284篇 |
2009年 | 238篇 |
2008年 | 354篇 |
2007年 | 361篇 |
2006年 | 282篇 |
2005年 | 305篇 |
2004年 | 207篇 |
2003年 | 201篇 |
2002年 | 155篇 |
2001年 | 71篇 |
2000年 | 43篇 |
1999年 | 56篇 |
1998年 | 18篇 |
1997年 | 10篇 |
1996年 | 19篇 |
1995年 | 22篇 |
1994年 | 9篇 |
1993年 | 10篇 |
1992年 | 29篇 |
1991年 | 38篇 |
1990年 | 27篇 |
1989年 | 24篇 |
1988年 | 19篇 |
1987年 | 17篇 |
1986年 | 17篇 |
1985年 | 20篇 |
1984年 | 19篇 |
1983年 | 15篇 |
1982年 | 8篇 |
1979年 | 8篇 |
1978年 | 18篇 |
1977年 | 8篇 |
1975年 | 11篇 |
1974年 | 12篇 |
1972年 | 11篇 |
1971年 | 12篇 |
1969年 | 8篇 |
排序方式: 共有6598条查询结果,搜索用时 15 毫秒
101.
102.
103.
104.
Larissa Rodrigues Fabris úrsulla Vilella Andrade Aline Ferreira Dos Santos Ana Paula da Costa Marques Sandra Maria do Valle Leone de Oliveira Rinaldo P?ncio Mendes Anamaria Mello Miranda Paniago 《Revista do Instituto de Medicina Tropical de S?o Paulo》2014,56(2):121-125
With the objective to evaluate the behavior of paracoccidioidomycosis
in the last three decades, clinical and epidemiological data of 595 patients
admitted to clinical services of the Federal University of Mato Grosso do Sul
from 1980 to 2009 were investigated. Gender, age distribution, clinical form,
comorbidity with tuberculosis or AIDS, and mortality were compared by decades of
clinical admission. It was shown that during the three decades there was a
decrease in women percentage, and the same manner occurred a reduction in
participants in the age group of 20 to 39 years. Moreover, the acute/subacute
forms have been diminished in the period. These fluctuations are closely related
and can be simultaneously analyzed. Increased AIDS co-infection prevalence from
the first to the second decade was also revealed, coinciding with the appearance
of the retroviral epidemic and stabilizing during the third decade. No change in
the tuberculosis co-infection rate was observed (overall = 6.9%). It
reinforces the importance of this co-morbidity. The overall mortality rate
remained steady at 6.7%, not varying significantly from one decade to another.
The persistent mortality rate calls attention to the importance of this
neglected disease. 相似文献
105.
106.
Cristina Martins Coelho Larissa Almeida Campos Fabiana Oliveira Pereira Ranieri Monteiro Cardoso Lucas Mendes Nascimento Jessica Blanc Leite Oliveira 《The Journal of asthma》2018,55(1):73-78
Considering the complex relationship between asthma symptoms and exercise, asthmatics are usually believed to be less active in daily life than healthy subjects. However, few studies have objectively assessed daily-life physical activity (DLPA) of asthmatic adults. Objective: To objectively assess DLPA of a sample of Brazilian asthmatic women in comparison to healthy controls, and to investigate the associations between DLPA and asthma control, health-related quality of life, anxiety and depression levels, and the Six-minute walk test (6MWT) in this population. Methods: Sixty-six women were included, 36 in the asthma group (AG) and 30 in the control group (CG). The AG was composed by clinically stable moderate-to-severe asthmatics. The CG was composed by apparently healthy volunteers. All subjects underwent DLPA assessment (considered as the average of steps taken during six consecutive days measured by a pedometer) and performed the 6MWT. Additionally, participants in the AG were assessed using the Asthma Control Questionnaire, the Asthma Quality of Life Questionnaire (AQLQ), and the Hospital Anxiety and Depression Scale. Results: There was no difference between the AG and the CG regarding DLPA (7490.3 ± 3330.2 vs 6876.4 ± 3242.1 steps respectively, p = 0.45), even after adjustment for covariates. DLPA was significantly correlated to the activity limitation domain of the AQLQ among asthmatics (r = 0.43, p < 0.01). Conclusion: Despite the association between self-perceived activity limitation and DLPA among asthmatics, there were no differences regarding DLPA between a sample of moderate-to-severe Brazilian asthmatic women and apparently healthy controls. 相似文献
107.
108.
Santos Camila Leite Bobermin Larissa Daniele Souza Diogo Onofre Quincozes-Santos André 《Metabolic brain disease》2018,33(6):2059-2063
Metabolic Brain Disease - Leptin is an adipose tissue-derived hormone that acts on the hypothalamus in order to maintain energy homeostasis. However, leptin can also induce an inflammatory... 相似文献
109.
Luiz Gustavo Martins Fred Bernardes Filho Maria Victória Quaresma Thiago Rubin Bellott Larissa Nascimento Botelho Ana Cecília Studart Prata 《Anais brasileiros de dermatologia》2014,89(3):513-514
We report the case of a 47-year-old homeless male with a massive infestation of
Pediculus humanus corporis on his entire body. Dermoscopy helped
to diagnose pediculosis by showing the involvement of scalp, beard and the genital
region in this disease. 相似文献
110.
Samir Abdallah Hanna Alfredo Carlos Simões Dornellas de Barros Felipe Eduardo Martins de Andrade Jose Luiz Barbosa Bevilacqua José Roberto Morales Piato Edilson Lopes Pelosi Eduardo Martella João Luis Fernandes da Silva Heloisa de Andrade Carvalho 《International journal of radiation oncology, biology, physics》2014