全文获取类型
收费全文 | 11480篇 |
免费 | 700篇 |
国内免费 | 51篇 |
专业分类
耳鼻咽喉 | 302篇 |
儿科学 | 294篇 |
妇产科学 | 306篇 |
基础医学 | 1591篇 |
口腔科学 | 424篇 |
临床医学 | 928篇 |
内科学 | 2676篇 |
皮肤病学 | 207篇 |
神经病学 | 1272篇 |
特种医学 | 233篇 |
外科学 | 1078篇 |
综合类 | 23篇 |
一般理论 | 5篇 |
预防医学 | 686篇 |
眼科学 | 134篇 |
药学 | 731篇 |
1篇 | |
中国医学 | 37篇 |
肿瘤学 | 1303篇 |
出版年
2024年 | 55篇 |
2023年 | 125篇 |
2022年 | 277篇 |
2021年 | 432篇 |
2020年 | 285篇 |
2019年 | 319篇 |
2018年 | 350篇 |
2017年 | 291篇 |
2016年 | 350篇 |
2015年 | 371篇 |
2014年 | 497篇 |
2013年 | 614篇 |
2012年 | 938篇 |
2011年 | 1054篇 |
2010年 | 521篇 |
2009年 | 455篇 |
2008年 | 796篇 |
2007年 | 724篇 |
2006年 | 650篇 |
2005年 | 685篇 |
2004年 | 620篇 |
2003年 | 573篇 |
2002年 | 490篇 |
2001年 | 69篇 |
2000年 | 45篇 |
1999年 | 66篇 |
1998年 | 94篇 |
1997年 | 67篇 |
1996年 | 52篇 |
1995年 | 48篇 |
1994年 | 38篇 |
1993年 | 35篇 |
1992年 | 33篇 |
1991年 | 23篇 |
1990年 | 19篇 |
1989年 | 19篇 |
1988年 | 20篇 |
1987年 | 11篇 |
1986年 | 25篇 |
1985年 | 17篇 |
1984年 | 10篇 |
1983年 | 11篇 |
1982年 | 11篇 |
1980年 | 6篇 |
1979年 | 7篇 |
1978年 | 5篇 |
1976年 | 4篇 |
1974年 | 4篇 |
1972年 | 5篇 |
1967年 | 2篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
101.
Perciaccante A Valente R Di Stefano A Fiorentini A Tubani L 《Blood pressure monitoring》2008,13(1):63; author reply 63-63; author reply 64
102.
103.
Spironolactone improves lung diffusion in chronic heart failure. 总被引:1,自引:0,他引:1
Piergiuseppe Agostoni Alessandra Magini Daniele Andreini Mauro Contini Anna Apostolo Maurizio Bussotti Gaia Cattadori Pietro Palermo 《European heart journal》2005,26(2):159-164
AIMS: To evaluate whether anti-aldosteronic treatment influences lung diffusion (DLCO) in chronic heart failure (HF) patients. Spironolactone improves clinical conditions and prognosis in chronic HF and reduces connective tissue matrix turnover; DLCO abnormalities in chronic HF are related to increase in fibrosis and connective tissue derangement. METHODS AND RESULTS: Thirty stable chronic HF patients, with reduced DLCO (<80% of predicted), were randomly assigned to active treatment (25 mg spironolactone daily) or placebo in addition to conventional anti-failure treatment. They were evaluated by quality of life questionnaire, laboratory investigations, cardiopulmonary exercise test, and pulmonary function test, which included DLCO and membrane diffusing capacity (DM). The evaluation was done before treatment and 6 months after. Quality of life score and standard pulmonary function tests were not significantly affected by spironolactone, while active treatment increased DLCO due to an increase of DM (DLCO: 18.3+/-3.9 vs. 19.9+/-5.5 mL/min/mmHg; DM: 28.1+/-7.7 vs. 33.3+/-8.6 mL/min/mmHg) and peak oxygen consumption (peak VO2 16.8+/-1.9 vs.18.6+/-2.2 mL/min/kg). Increments of DLCO and peak VO2 were linearly related (R=0.849, P<0.001). CONCLUSION: These data show a positive effect of spironolactone on gas diffusion and exercise capacity suggesting a novel mechanism by which anti-aldosteronic drugs improve HF clinical condition and prognosis. 相似文献
104.
105.
Saidy Vásconez Noguera Evelyn Patrícia Sánchez Espinoza Marina Farrel Côrtes Izabel Cristina Vilela Oshiro Fernanda de Sousa Spadão Laura Maria Brasileiro Brandão Ana Natiele da Silva Barros Sibeli Costa Bianca Leal de Almeida Paula Gemignani Soriano Alessandra Grassi Salles Mirian Elizabete Marques Escorcio Cristina Madeira Barretti Fernanda Spadotto Baptista Glaura Souza Alvarenga Igor Marinho Leila Suemi Harima Letaif Ho Ye Li Silvia Figueiredo Costa 《American journal of infection control》2021,49(4):512-515
106.
Zampieron A Harrington M Elseviers M Lindley E De Vos JY Visser R 《EDTNA/ERCA journal (English ed.)》2004,30(2):59-61
The Research Board (RB) of EDTNA/ERCA is a multidisciplinary group, established by the participation of renal care centres all around Europe. The RB also works with the association's Special Interest Groups (SIGs) on developing guidelines for implementing safe renal clinical practice. It is composed of six permanent members, with co-opted experts from specific fields. This article describes how the RB works and the projects implemented since 1996. 相似文献
107.
Zampieron A Jayasekera H Elseviers M Lindley E De Vos JY Visser R Harrington M 《EDTNA/ERCA journal (English ed.)》2004,30(2):84-90
Haemodialysis patients are known to be at risk of infection of Hepatitis C Virus (HCV) through nosocomial spread. This paper presents the first part of a study on epidemiology and management of HCV, in a haemodialysis population, conducted by the EDTNA/ERCA Research Board. Data on HCV management and infection control procedures was collected from 136 European centres using an electronic questionnaire. The study identifies a number of possible risk factors for transmission of the virus: failing to disinfect devices between patients, sharing of single-use vials to prepare drugs or infusions for different patients, inadequate sterilisation or cleaning of machines between dialysis sessions, unsatisfactory environmental cleaning and distance less than one metre between chairs. 相似文献
108.
109.
110.
Luciano Magalhães Vitorino Laryssa Souza Marins Alessandra Lamas Granero Lucchetti Ana Eliza Oliveira Santos Jonas Preposi Cruz Paulo José Oliveira Cortez Giancarlo Lucchetti 《Geriatric nursing (New York, N.Y.)》2018,39(1):48-53
This aim of this study was assess whether positive and negative spiritual/religious coping (SRC) strategies are associated with depressive symptoms (DS) of informal caregiver (IC) of hospitalized older adults. A cross-sectional study was conducted among 98 IC of hospitalized older adults in the medical clinic of a Brazilian School Hospital. The functionality, Positive and Negative SRC strategies and DS were evaluated. The IC had high average use of SRC, with Positive SRC being more used than Negative SRC. In the unadjusted regression model, Positive and Negative SRC were associated with DS. However, when adjusted for confounding factors, only Negative SRC remained associated with DS. The IC had used their religious and spiritual beliefs as a way to cope with the stress that comes from caring for hospitalized older adults. Although the positive strategy use of these beliefs was more common, only the negative strategies were associated with a higher DS. 相似文献