全文获取类型
收费全文 | 42377篇 |
免费 | 1481篇 |
国内免费 | 376篇 |
专业分类
耳鼻咽喉 | 359篇 |
儿科学 | 948篇 |
妇产科学 | 924篇 |
基础医学 | 5573篇 |
口腔科学 | 760篇 |
临床医学 | 3084篇 |
内科学 | 9040篇 |
皮肤病学 | 552篇 |
神经病学 | 4162篇 |
特种医学 | 1726篇 |
外科学 | 6336篇 |
综合类 | 1887篇 |
一般理论 | 35篇 |
预防医学 | 2211篇 |
眼科学 | 442篇 |
药学 | 2972篇 |
28篇 | |
中国医学 | 100篇 |
肿瘤学 | 3095篇 |
出版年
2023年 | 278篇 |
2022年 | 480篇 |
2021年 | 1416篇 |
2020年 | 938篇 |
2019年 | 1298篇 |
2018年 | 2025篇 |
2017年 | 1394篇 |
2016年 | 1830篇 |
2015年 | 1989篇 |
2014年 | 2344篇 |
2013年 | 3021篇 |
2012年 | 3190篇 |
2011年 | 2578篇 |
2010年 | 2316篇 |
2009年 | 1996篇 |
2008年 | 2302篇 |
2007年 | 2268篇 |
2006年 | 2023篇 |
2005年 | 1889篇 |
2004年 | 1738篇 |
2003年 | 1354篇 |
2002年 | 1147篇 |
2001年 | 240篇 |
2000年 | 287篇 |
1999年 | 323篇 |
1998年 | 320篇 |
1997年 | 259篇 |
1996年 | 232篇 |
1995年 | 182篇 |
1994年 | 141篇 |
1993年 | 167篇 |
1992年 | 155篇 |
1991年 | 124篇 |
1990年 | 129篇 |
1989年 | 133篇 |
1988年 | 123篇 |
1987年 | 124篇 |
1986年 | 101篇 |
1985年 | 74篇 |
1984年 | 96篇 |
1983年 | 66篇 |
1982年 | 74篇 |
1981年 | 54篇 |
1980年 | 67篇 |
1978年 | 25篇 |
1977年 | 39篇 |
1976年 | 28篇 |
1971年 | 29篇 |
1970年 | 30篇 |
1968年 | 35篇 |
排序方式: 共有10000条查询结果,搜索用时 125 毫秒
1.
Olivari Davide De Giorgio Daria Staszewsky Lidia Irene Fumagalli Francesca Boccardo Antonio Novelli Deborah Manfredi Martina Babini Giovanni Luciani Anita Ruggeri Laura Magliocca Aurora Zani Davide Danilo Masson Serge Belloli Angelo Pravettoni Davide Maiocchi Giuseppe Latini Roberto Ristagno Giuseppe 《Cardiovascular drugs and therapy / sponsored by the International Society of Cardiovascular Pharmacotherapy》2022,36(4):727-738
Cardiovascular Drugs and Therapy - Available animal models of acute heart failure (AHF) and their limitations are discussed herein. A novel and preclinically relevant porcine model of decompensated... 相似文献
2.
Kely Paviani StevanatoRaíssa Bocchi PedrosoCatia Millene Dell AgnoloLander Dos SantosFernando Castilho PellosoMaria Dalva de Barros CarvalhoSandra Marisa Pelloso 《Asian Pacific journal of cancer prevention》2022,23(4):1117-1123
Objective: To perform a scoping review of the applicability of the Gail model in different countries for different ethnicities. Methods: The review was conducted based on the Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for Scoping Reviews (PRISMA-ScR) checklist and search strategies based on the PICOS approach. The reviewed articles were included if they were published between 2013 and 2018 in English, Portuguese, or Spanish; were original articles available in full online; and described the use of the Gail model. The PubMed, Embase, and Web of Science data bases were searched. Results: A total of 38 articles eligible for analysis were identified, of which 16 used the Gail model to assess breast cancer risk in women, eight analyzed the applicability of this tool in their population, seven compared the tool and/or modified it according to the specific risk factors of their population, and seven cited the model in determining eligibility for chemoprevention. Conclusion: The Gail model has different applicabilities Greater effectiveness and breast cancer risk are found in developed countries. 相似文献
3.
4.
目的探究腹腔镜精准肝切除术治疗原发性肝癌的临床效果。方法选择2019年1月—2020年6月期间在医院接受腹腔镜肝切除术治疗的80例原发性肝癌患者作为实验分析对象,依据手术治疗方案的不同将患者分为腹腔镜常规肝切除组(对照组)40例和腹腔镜精准肝切除组(观察组)40例,对两组患者手术各项指标、手术前后肝功能指标改善情况及术后并发症发生率进行对比分析。结果观察组患者手术时间明显长于对照组,组间比较进行t检验,差异具有统计学意义(P<0.05);观察组患者术中出血量及术中输血量均少于对照组患者,术后恢复时间明显短于对照组患者,组间比较进行t检验,差异具有统计学意义(P<0.05);术后,两组患者ALT、AST、ALB及TBIL水平均显著降低,组内比较进行t检验,差异具有统计学意义(P<0.05),观察组患者ALT、AST、ALB及TBIL水平降低幅度显著大于对照组患者,组间比较进行t检验,差异具有统计学意义(P<0.05);观察组患者术后并发症发生率为10.00%,对照组患者术后并发症发生率为27.50%,组间比较进行χ2检验,差异具有统计学意义(χ2=4.021;P=0.045)。结论与腹腔镜常规肝切除术比较,腹腔镜精准肝切除术操作精细,手术时间相对较长,患者术中出血量更少,术后恢复时间更短,能够最大限度保护患者的肝脏,减低患者术后并发症发生率,提高手术治疗效果,改善患者预后。 相似文献
5.
Carlo Romano Settanni Gianluca Ianiro Francesca Romana Ponziani Stefano Bibb Jonathan Philip Segal Giovanni Cammarota Antonio Gasbarrini 《World journal of gastroenterology : WJG》2021,27(43):7433-7445
In December 2019 a novel coronavirus disease 2019 (COVID-19), caused by the severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2), started spreading from Wuhan city of Chinese Hubei province and rapidly became a global pandemic. Clinical symptoms of the disease range from paucisymptomatic disease to a much more severe disease. Typical symptoms of the initial phase include fever and cough, with possible progression to acute respiratory distress syndrome. Gastrointestinal manifestations such as diarrhoea, vomiting and abdominal pain are reported in a considerable number of affected individuals and may be due to the SARS-CoV-2 tropism for the peptidase angiotensin receptor 2. The intestinal homeostasis and microenvironment appear to play a major role in the pathogenesis of COVID-19 and in the enhancement of the systemic inflammatory responses. Long-term consequences of COVID-19 include respiratory disturbances and other disabling manifestations, such as fatigue and psychological impairment. To date, there is a paucity of data on the gastrointestinal sequelae of SARS-CoV-2 infection. Since COVID-19 can directly or indirectly affect the gut physiology in different ways, it is plausible that functional bowel diseases may occur after the recovery because of potential pathophysiological alterations (dysbiosis, disruption of the intestinal barrier, mucosal microinflammation, post-infectious states, immune dysregulation and psychological stress). In this review we speculate that COVID-19 can trigger irritable bowel syndrome and we discuss the potential mechanisms. 相似文献
6.
7.
结核病与糖尿病均是临床上的常见病和多发病,两者可合并存在,相互影响。活动性结核病作为感染因素可加重糖尿病病情,而糖尿病患者又是发生结核病的高危人群,结核病与糖尿病双重负担将成为重大的全球公共卫生问题。因此,需重视结核病与糖尿病共病的治疗管理。本共识重点介绍了结核病与糖尿病共病的危害、发病机制、双向筛查、临床特点、诊断、治疗和管理等内容。 相似文献
8.
Hajrunisa Cubro Karl A. Nath Sonja Suvakov Oscar Garcia-Valencia Santosh Parashuram Wendy M. White Tracey L. Weissgerber Meryl C. Nath Natasa M. Milic Fernando Sontag Livius V. d’Uscio Yi Zhu James L. Kirkland Tamar Tchkonia Mariam P. Alexander Reade A. Quinton Zvonimir S. Katusic Joseph P. Grande Vesna D. Garovic 《Kidney international》2021,99(3):646-656
9.