全文获取类型
收费全文 | 4554篇 |
免费 | 286篇 |
国内免费 | 32篇 |
专业分类
耳鼻咽喉 | 39篇 |
儿科学 | 111篇 |
妇产科学 | 119篇 |
基础医学 | 599篇 |
口腔科学 | 208篇 |
临床医学 | 334篇 |
内科学 | 1179篇 |
皮肤病学 | 144篇 |
神经病学 | 324篇 |
特种医学 | 68篇 |
外科学 | 689篇 |
综合类 | 35篇 |
预防医学 | 393篇 |
眼科学 | 49篇 |
药学 | 264篇 |
中国医学 | 20篇 |
肿瘤学 | 297篇 |
出版年
2023年 | 34篇 |
2022年 | 79篇 |
2021年 | 145篇 |
2020年 | 86篇 |
2019年 | 120篇 |
2018年 | 138篇 |
2017年 | 122篇 |
2016年 | 84篇 |
2015年 | 121篇 |
2014年 | 175篇 |
2013年 | 192篇 |
2012年 | 326篇 |
2011年 | 345篇 |
2010年 | 196篇 |
2009年 | 167篇 |
2008年 | 307篇 |
2007年 | 298篇 |
2006年 | 291篇 |
2005年 | 250篇 |
2004年 | 257篇 |
2003年 | 219篇 |
2002年 | 220篇 |
2001年 | 102篇 |
2000年 | 90篇 |
1999年 | 81篇 |
1998年 | 27篇 |
1997年 | 42篇 |
1996年 | 27篇 |
1995年 | 16篇 |
1994年 | 12篇 |
1993年 | 16篇 |
1992年 | 46篇 |
1991年 | 39篇 |
1990年 | 15篇 |
1989年 | 25篇 |
1988年 | 10篇 |
1987年 | 13篇 |
1986年 | 15篇 |
1985年 | 10篇 |
1984年 | 13篇 |
1983年 | 8篇 |
1982年 | 12篇 |
1981年 | 12篇 |
1979年 | 7篇 |
1977年 | 5篇 |
1976年 | 8篇 |
1975年 | 6篇 |
1974年 | 7篇 |
1967年 | 4篇 |
1966年 | 4篇 |
排序方式: 共有4872条查询结果,搜索用时 15 毫秒
101.
102.
103.
104.
105.
Víctor Hugo Malo-Camacho Gerardo Enrique Bauelos-Díaz Víctor Hugo Martínez-Velzquez Luis Lpez-Ortega Oscar Malo-Macías Enrique Villarreal-Ríos Alejandro Sosa-Gallegos Mauricio Alva-Njera Mario Ivn Mejía-Valencia 《Medicine》2021,100(23)
Cohort study.This study aimed to determine the effectiveness of the universal approach of full endoscopy and percutaneous transpedicular fixation via a medial central approach (ACM) performed to surgically treat patients with lumbar degenerative surgical pathologies.Alternatives to interventionist treatments available to patients with lumbar degenerative surgical pathologies are related to recovery from minimally invasive surgery. Considering this, full endoscopic spinal decompression (full endoscopy) and percutaneous transpedicular fixation via an ACM represent advances in neurosurgical procedures, in particular, spinal surgery. Thus, the introduction of endoscopic and minimally invasive surgeries for the lumbar region has become 1 of the most important advances in modern surgery.A cohort of 79 patients undergoing full endoscopy and percutaneous transpedicular fixation was evaluated 6 times in 1 year. Pain intensity was measured using the visual analog scale (VAS), and lumbar functionality was measured using the Oswestry Disability Index (ODI). Six evaluations were performed: before surgery and on discharge after surgery as well as at 1, 3, 6, and 12 months after surgery.Before the ACM was applied, the VAS pain score was 8.52. At 11 hours post-surgery, the pain score reduced to 2.59 points (a difference of 5.73 points; P = 0.001). Of the 10 ODI domains evaluated, a difference was found between the period prior to surgery and 1 month later (P < 0.01).The universal approach to full endoscopy and lumbar percutaneous transpedicular fixation via an ACM is highly effective for patients with lumbar surgical degenerative pathologies. 相似文献
106.
107.
Russo Vincenzo Bottino Roberta D’Andrea Antonello Silverio Angelo Di Maio Marco Golino Paolo Nigro Gerardo Valsecchi Orazio Attena Emilio Canonico Mario Enrico Galasso Gennaro Parodi Guido Scudiero Fernando 《Cardiovascular drugs and therapy / sponsored by the International Society of Cardiovascular Pharmacotherapy》2022,36(4):705-712
Cardiovascular Drugs and Therapy - The clinical course of COVID-19 may be complicated by acute respiratory distress syndrome (ARDS) and thromboembolic events, which are associated with high risk of... 相似文献
108.
Fernández A Quintana G Matteson EL Restrepo JF Rondón F Sánchez A Iglesias A 《Clinical rheumatology》2004,23(6):523-526
Systemic lupus erythematosus is an autoimmune and inflammatory disease with multiple clinical manifestations, including arthropathy. The clinical presentation of articular involvement is variable, ranging from arthralgia without erosions or deformity to an erosive arthropathy and severe functional disability. A subset of patients with this articular involvement have Jaccouds arthropathy, and others have an arthropathy with clinical findings similar to rheumatoid arthritis that has been called rhupus. In this paper we review the historical evolution of concepts of lupus arthropathy, from deforming arthritis to rhupus, and conclude that rhupus is not a combination of rheumatoid arthritis and lupus. Instead, rhupus arthropathy should be regarded as a variant of the arthropathy of systemic lupus erythematosus. 相似文献
109.
Breastfeeding attenuates the effect of low birthweight on abdominal adiposity in adolescents: the HELENA study 下载免费PDF全文
Idoia Labayen Francisco B Ortega Jonatan R Ruiz Gerardo Rodriguez David Jiménez‐Pavón Vanesa España‐Romero Kurt Widhalm Frédéric Gottrand Luis A Moreno 《Maternal & child nutrition》2015,11(4):1036-1040
The aim of this study was to examine whether breastfeeding may reduce the programming effect of birthweight on abdominal adiposity. Abdominal (in three regions: R1, R2 and R3) adiposity was measured by dual energy x‐ray absorptiometry in 314 adolescents. Breastfeeding duration, birthweight, duration of gestation and maternal educational level were obtained from questionnaire. Physical activity was objectively measured. We detected significant interactions between breastfeeding and birthweight on abdominal adiposity (Ps = 0.02–0.07). We observed that birthweight was associated with abdominal adiposity in the group who had never been breastfed (β = ?0.19 to ?0.23; Ps < 0.05), while no association was found in adolescents who had breastfeeding for ≥3 months (β = ?0.03 to ?0.07). The results were independent of duration of gestation, age, sex, maternal educational level and physical activity. Breastfeeding may reduce the adverse influence conferred by low birthweight on abdominal adiposity in adolescents. 相似文献