全文获取类型
收费全文 | 4705篇 |
免费 | 341篇 |
国内免费 | 9篇 |
专业分类
耳鼻咽喉 | 95篇 |
儿科学 | 115篇 |
妇产科学 | 98篇 |
基础医学 | 547篇 |
口腔科学 | 56篇 |
临床医学 | 522篇 |
内科学 | 767篇 |
皮肤病学 | 85篇 |
神经病学 | 591篇 |
特种医学 | 232篇 |
外科学 | 856篇 |
综合类 | 76篇 |
一般理论 | 4篇 |
预防医学 | 347篇 |
眼科学 | 42篇 |
药学 | 252篇 |
中国医学 | 1篇 |
肿瘤学 | 369篇 |
出版年
2023年 | 35篇 |
2022年 | 39篇 |
2021年 | 86篇 |
2020年 | 65篇 |
2019年 | 94篇 |
2018年 | 100篇 |
2017年 | 60篇 |
2016年 | 75篇 |
2015年 | 100篇 |
2014年 | 136篇 |
2013年 | 206篇 |
2012年 | 320篇 |
2011年 | 291篇 |
2010年 | 200篇 |
2009年 | 169篇 |
2008年 | 260篇 |
2007年 | 275篇 |
2006年 | 260篇 |
2005年 | 279篇 |
2004年 | 296篇 |
2003年 | 255篇 |
2002年 | 252篇 |
2001年 | 75篇 |
2000年 | 77篇 |
1999年 | 81篇 |
1998年 | 56篇 |
1997年 | 39篇 |
1996年 | 45篇 |
1995年 | 42篇 |
1994年 | 34篇 |
1993年 | 34篇 |
1992年 | 53篇 |
1991年 | 42篇 |
1990年 | 41篇 |
1989年 | 54篇 |
1988年 | 36篇 |
1987年 | 26篇 |
1986年 | 32篇 |
1985年 | 27篇 |
1984年 | 21篇 |
1983年 | 29篇 |
1982年 | 29篇 |
1981年 | 37篇 |
1980年 | 27篇 |
1979年 | 32篇 |
1978年 | 31篇 |
1977年 | 19篇 |
1976年 | 19篇 |
1975年 | 21篇 |
1974年 | 15篇 |
排序方式: 共有5055条查询结果,搜索用时 15 毫秒
101.
Rumble Deanna D. O’Neal Katherine Overstreet Demario S. Penn Terence M. Jackson Pamela Aroke Edwin N. Sims Andrew M. King Annabel L. Hasan Fariha N. Quinn Tammie L. Long D. Leann Sorge Robert E. Goodin Burel R. 《Journal of behavioral medicine》2021,44(6):811-821
Journal of Behavioral Medicine - Individuals with chronic low back pain (cLBP) frequently report sleep disturbances. Living in a neighborhood characterized by low-socioeconomic status (SES) is... 相似文献
102.
Burns Heather Collins Abigail Marsden Paul Flood Terence J. Slatter Mary A. Booth Claire Xu-Bayford Jinhua Leahy Timothy Ronan 《Journal of clinical immunology》2021,41(8):1950-1953
Journal of Clinical Immunology - 相似文献
103.
104.
105.
106.
107.
108.
109.
Susan Yung Sing Leung Lui Chris K.F. Ng Andrew Yim Maggie K.M. Ma Kin Yee Lo Chik Cheung Chow Kwok Hong Chu Wai Leung Chak Man Fai Lam Chun Yu Yung Terence P.S. Yip Sunny Wong Colin S.O. Tang Flora S.K. Ng Tak Mao Chan 《Peritoneal dialysis international》2015,35(2):147-158
♦ Background: The impact of a low-glucose peritoneal dialysis (PD) regimen on biomarkers of peritoneal inflammation, fibrosis and membrane integrity remains to be investigated.♦ Methods: In a randomized, prospective study, 80 incident PD patients received either a low-glucose regimen comprising Physioneal (P), Extraneal (E) and Nutrineal (N) (Baxter Healthcare Corporation, Deerfield, IL, USA) (PEN group), or Dianeal (control group) for 12 months, after which both groups continued with Dianeal dialysis for 6 months. Serum and dialysate levels of vascular endothelial growth factor (VEGF), decorin, hepatocyte growth factor (HGF), interleukin-6 (IL-6), macrophage migration inhibitory factor (MIF), hyaluronan (HA), adiponectin, soluble-intracellular adhesion molecule (s-ICAM), vascular cell adhesion molecule-1 (VCAM-1) and P-selectin, and dialysate cancer antigen 125 (CA125), were measured after 12 and 18 months. This paper focuses on results after 12 months, when patients in the PEN group changed to glucose-based PD fluid (PDF).♦ Results: At the end of 12 months, effluent dialysate levels of CA125, decorin, HGF, IL-6, adiponectin and adhesion molecules were significantly higher in the PEN group compared to controls, but all decreased after patients switched to glucose-based PDF. Macrophage migration inhibitory factor level was lower in the PEN group but increased after changing to glucose-based PDF and was similar to controls at 18 months. Serum adiponectin level was higher in the PEN group at 12 months, but was similar in the 2 groups at 18 months. Body weight, residual renal function, ultrafiltration volume and total Kt/V did not differ between both groups. Dialysate-to-plasma creatinine ratio at 4 h was higher in the PEN group at 12 months and remained so after switching to glucose-based PDF.♦ Conclusion: Changes in the biomarkers suggest that the PEN PD regimen may be associated with better preservation of peritoneal membrane integrity and reduced systemic vascular endothelial injury. 相似文献
110.
Examination criteria and calibration procedures for prevention trials of the Early Childhood Caries Collaborating Centers
下载免费PDF全文
![点击此处可从《Journal of public health dentistry》网站下载免费的PDF全文](/ch/ext_images/free.gif)