全文获取类型
收费全文 | 35034篇 |
免费 | 3378篇 |
国内免费 | 123篇 |
专业分类
耳鼻咽喉 | 477篇 |
儿科学 | 728篇 |
妇产科学 | 620篇 |
基础医学 | 4248篇 |
口腔科学 | 7814篇 |
临床医学 | 2438篇 |
内科学 | 6385篇 |
皮肤病学 | 719篇 |
神经病学 | 2962篇 |
特种医学 | 637篇 |
外国民族医学 | 1篇 |
外科学 | 3601篇 |
综合类 | 164篇 |
一般理论 | 15篇 |
预防医学 | 2638篇 |
眼科学 | 417篇 |
药学 | 2480篇 |
中国医学 | 161篇 |
肿瘤学 | 2030篇 |
出版年
2023年 | 557篇 |
2022年 | 236篇 |
2021年 | 1021篇 |
2020年 | 762篇 |
2019年 | 881篇 |
2018年 | 1251篇 |
2017年 | 1102篇 |
2016年 | 1207篇 |
2015年 | 1393篇 |
2014年 | 1627篇 |
2013年 | 1976篇 |
2012年 | 2413篇 |
2011年 | 2535篇 |
2010年 | 1635篇 |
2009年 | 1633篇 |
2008年 | 1962篇 |
2007年 | 1934篇 |
2006年 | 1723篇 |
2005年 | 1594篇 |
2004年 | 1460篇 |
2003年 | 1326篇 |
2002年 | 1190篇 |
2001年 | 675篇 |
2000年 | 602篇 |
1999年 | 542篇 |
1998年 | 419篇 |
1997年 | 377篇 |
1996年 | 321篇 |
1995年 | 319篇 |
1994年 | 286篇 |
1993年 | 230篇 |
1992年 | 389篇 |
1991年 | 302篇 |
1990年 | 309篇 |
1989年 | 220篇 |
1988年 | 240篇 |
1987年 | 186篇 |
1986年 | 177篇 |
1985年 | 182篇 |
1984年 | 150篇 |
1983年 | 134篇 |
1982年 | 120篇 |
1981年 | 89篇 |
1979年 | 107篇 |
1978年 | 66篇 |
1977年 | 62篇 |
1976年 | 55篇 |
1975年 | 69篇 |
1974年 | 64篇 |
1973年 | 56篇 |
排序方式: 共有10000条查询结果,搜索用时 213 毫秒
1.
Ruscitti Piero Di Cola Ilenia Berardicurti Onorina Conforti Alessandro Iacono Daniela Pantano Ilenia Rozza Gelsomina Rossi Silvia De Stefano Ludovico Balduzzi Silvia Vitale Antonio Caso Francesco Costa Luisa Prete Marcella Navarini Luca Atzeni Fabiola Guggino Giuliana Perosa Federico Cantarini Luca Frediani Bruno Montecucco Carlomaurizio Ciccia Francesco Giacomelli Roberto Cipriani Paola 《Clinical rheumatology》2022,41(11):3597-3597
Clinical Rheumatology - 相似文献
2.
Paul G. Richardson Fredrik Schjesvold Katja Weisel Philippe Moreau Larry D. Anderson Darrell White Paula Rodriguez-Otero Pieter Sonneveld Monika Engelhardt Matthew Jenner Alessandro Corso Jan Dürig Michel Pavic Morten Salomo Meral Beksac Albert Oriol Jindriska Lindsay Anna Marina Liberati Monica Galli Pawel Robak Alessandra Larocca Munci Yagci Filiz Vural Abraham S. Kanate Ruiyun Jiang Lara Grote Teresa Peluso Meletios Dimopoulos 《European journal of haematology》2022,108(1):73-83
3.
4.
5.
6.
Hagop Kantarjian Tapan Kadia Courtney DiNardo Naval Daver Gautam Borthakur Elias Jabbour Guillermo Garcia-Manero Marina Konopleva Farhad Ravandi 《Blood cancer journal》2021,11(2)
Progress in the understanding of the biology and therapy of acute myeloid leukemia (AML) is occurring rapidly. Since 2017, nine agents have been approved for various indications in AML. These included several targeted therapies like venetoclax, FLT3 inhibitors, IDH inhibitors, and others. The management of AML is complicated, highlighting the need for expertise in order to deliver optimal therapy and achieve optimal outcomes. The multiple subentities in AML require very different therapies. In this review, we summarize the important pathophysiologies driving AML, review current therapies in standard practice, and address present and future research directions.Subject terms: Prognosis, Health services 相似文献
7.
Kerstin Protz Joachim Dissemond Myriam Seifert Marianne Hintner Barbara Temme Ida Verheyen‐Cronau Matthias Augustin Marina Otten 《International wound journal》2019,16(6):1252-1262
Brochures are a useful supplement to patient education. There is increasing evidence that they are an effective medium to support patient satisfaction, adherence, and empowerment. This study aims to produce reliable data on how much patients with venous leg ulcer (VLU) may profit from a brochure that focuses on VLU and on measures and aims of the related compression therapy. The evaluation took part from October 2018 until March 2019 and included 136 patients with VLU and related compression therapy. They were randomly sorted into a case group and a control group of 68 patients each. The case group received a brochure about venous disease and compression therapy and filled in a questionnaire after reading. The questions ranged from basic knowledge about VLU and compression therapy to aspects of self‐care. The control group answered the same questions without previous reading of the brochure. The results show that in almost every aspect, the patients in the case group were better informed about their diseases, the compression therapy, and how they may support the measures adequately. This study suggests that patients with VLU may profit from a brochure that explains their disease and the related compression therapy. Better knowledge and understanding may strengthen their empowerment and adherence. 相似文献
8.
9.
K. Young A. Aquilina T.J.S. Chesser M.L. Costa S. Hettiaratchy M.B. Kelly C.G. Moran I. Pallister M. Woodford 《Injury》2019,50(2):497-502
Aims
To assess current national practice in the management of severe open tibial fractures against national standards, using data collected by the Trauma and Audit Research Network.Materials and methods
Demographic, injury-specific, and outcome data were obtained for all grade IIIB/C fractures admitted to Major Trauma Centres in England from October 2014 to January 2016.Results
Data was available for 646 patients with recorded grade IIIB/C fractures. The male to female ratio was 2.3:1, mean age 47 years. 77% received antibiotics within 3?h of admission, 82% were debrided within 24?h. Soft tissue coverage was achieved within 72?h of admission in 71%. The amputation rate was 8.7%. 4.3% of patients required further theatre visits for infection during the index admission. The timing of antibiotics and surgery could not be correlated with returns to theatre for early infection. There were significant differences in the management and outcomes of patients aged 65 and over, with an increase in mortality and amputation rates.Conclusions
Good outcomes are reported from the management of IIIB/C fractures in Major Trauma Centres in England. Overall compliance with national standards is particularly poor in the elderly. Compliance did not appear to affect rates of returning to theatre or early infection. Appropriately applied patient reported outcome measures are needed to enhance the evidence-base for management of these injuries. 相似文献10.
Gonzalo Canche-Escamilla Pamela Colli-Acevedo Rocio Borges-Argaez Patricia Quintana-Owen J. Fernando May-Crespo Mirbella Cáceres-Farfan Jesus Alejandro Yam Puc Pablo Sansores-Peraza Blanca Marina Vera-Ku 《Sustainable Chemistry and Pharmacy》2019
The present work focuses on the use of solid and agricultural residues from Aloe vera crops, as a source of antimicrobial agents and textile dyes. The roots from an A. vera plantation post-harvest were extracted with ethyl acetate, purified and phytochemically characterized to obtain five metabolites: aloesaponarin-I (1), deoxyerythrolaccin (2), lacaic acid D methyl ester (3), aloesaponarin-II (4), and aloesaponol-I (5). Acid hydrolysis of the solid industrial residue gave aloe-emodin (6) as the main product with a good yield. All of the components were tested for the first time against phytopathogenic bacteria strains, and deoxyerythrolaccin and lacaic acid D methyl ester were active against Xanthomonas campestris with MIC values of 46.86 and 93.75 μg/mL, respectively. Aloesaponarin-I and aloe-emodin, the main products, were tested as dyes for polyester fabrics using different mordants and pH bath conditions. The colour of each material was investigated in terms of the CIELAB L*, a* and b* values, and the colour fastness to light and washing was investigated according to the Mexican standard methods (NMX-A-074-INNTEX-2005; NMX-A-105-B02-INNTEX-2010). Aloesaponarin-I dyed polyester bright yellow but the final colour was very sensitive to the pH of the dye bath. Aloe-emodin dyed polyester deep yellow, and the fabrics showed good colour fastness to light and to domestic laundering. This study provides evidence that the phenolic components obtained from agricultural residues of the aloe industry can be useful organic alternatives as antimicrobial agents and textile dyes. 相似文献