全文获取类型
收费全文 | 6435篇 |
免费 | 382篇 |
国内免费 | 15篇 |
专业分类
耳鼻咽喉 | 50篇 |
儿科学 | 489篇 |
妇产科学 | 70篇 |
基础医学 | 792篇 |
口腔科学 | 82篇 |
临床医学 | 451篇 |
内科学 | 1058篇 |
皮肤病学 | 160篇 |
神经病学 | 278篇 |
特种医学 | 235篇 |
外科学 | 804篇 |
综合类 | 413篇 |
一般理论 | 1篇 |
预防医学 | 436篇 |
眼科学 | 176篇 |
药学 | 706篇 |
中国医学 | 34篇 |
肿瘤学 | 597篇 |
出版年
2023年 | 33篇 |
2022年 | 43篇 |
2021年 | 133篇 |
2020年 | 88篇 |
2019年 | 89篇 |
2018年 | 134篇 |
2017年 | 105篇 |
2016年 | 133篇 |
2015年 | 154篇 |
2014年 | 200篇 |
2013年 | 249篇 |
2012年 | 364篇 |
2011年 | 370篇 |
2010年 | 260篇 |
2009年 | 191篇 |
2008年 | 305篇 |
2007年 | 293篇 |
2006年 | 279篇 |
2005年 | 256篇 |
2004年 | 260篇 |
2003年 | 221篇 |
2002年 | 174篇 |
2001年 | 196篇 |
2000年 | 163篇 |
1999年 | 171篇 |
1998年 | 89篇 |
1997年 | 94篇 |
1996年 | 88篇 |
1995年 | 71篇 |
1994年 | 57篇 |
1992年 | 109篇 |
1991年 | 78篇 |
1990年 | 91篇 |
1989年 | 98篇 |
1988年 | 82篇 |
1987年 | 77篇 |
1986年 | 76篇 |
1985年 | 91篇 |
1984年 | 75篇 |
1983年 | 60篇 |
1980年 | 37篇 |
1979年 | 70篇 |
1978年 | 42篇 |
1977年 | 42篇 |
1976年 | 50篇 |
1975年 | 67篇 |
1974年 | 38篇 |
1973年 | 60篇 |
1971年 | 41篇 |
1969年 | 39篇 |
排序方式: 共有6832条查询结果,搜索用时 15 毫秒
1.
SK Raina 《Journal of postgraduate medicine》2015,61(3):213-Sep;61(3):213
2.
3.
4.
5.
Surender Kumar Yachha Rakesh Aggarwal S Srinivas Anshu Srivastava Sanjay K Somani Srivenu Itha 《Indian journal of gastroenterology》2006,25(3):132-135
BACKGROUND: We prospectively evaluated the usefulness of IgA tissue transglutaminase antibodies (IgA tTG) in the initial diagnosis of celiac disease (CD) and compared its diagnostic potential with that of IgA anti-endomysial antibodies (IgA EMA) and anti-IgA and IgG gliadin antibodies (AGA and AGG, respectively). METHODS: Sera of 23 untreated children fulfilling the revised ESPGHAN criteria for diagnosis of CD (Group I; mean age 10.8 y); 19 disease controls (Group II; mean age 8.5 y) presenting with chronic diarrhea, short stature or both; and 22 healthy children (Group III; mean age 8.8 y) were studied. These were tested in a blinded manner for AGA, AGG, IgA tTG (guinea pig as antigen) and IgA EMA. RESULTS: In Group I, IgA EMA was positive in 19, IgA tTG in 17, AGA in 14 and AGG in 17 patients. In Group II, these tests were positive in 1, 0, 2 and 14 patients, respectively and in Group III, in 0, 0, 0 and 1 child, respectively. Analyzing data from Group I and II, IgA EMA, IgA tTG, AGA and AGG had sensitivity rates of 83%, 74%, 61% and 74%, respectively; the specificity rates were 95%, 100%, 89% and 26%; positive predictive values were 95%, 100%, 88% and 55% and negative predictive values were 82%, 74%, 65% and 45%, respectively. CONCLUSION: IgA tTG is useful for the diagnosis of CD, with sensitivity and specificity rates comparable to those of EMA and this test is well suited for use in tropical countries like India. 相似文献
6.
There has been a remarkable change in the scenario of therapeutic apheresis in the last 14 years in India. The crude method of manual removal of blood followed by separation of plasma by gravity, keeping it in the bottle for a long time, has now been totally replaced by plasmapheresis, centrifugation, membrane filtration, and immunoadsorption techniques. The indications for use have also changed from a list of limited indications in the beginning to include all immune complex disorders. The clinical beneficiaries have also increased from blood bankers to nephrologists and immunologists in addition to oncologists. Efforts are now underway with the help of the Indian Society for Apheresis (founded in 1985) to popularize the newer methods of cryofiltration, photopheresis and heparin extracorporeal low-density lipoprotein (HELP) and DALI apheresis systems besides the specialized techniques of immunoadsorption using filters, columns, or ligands. This is suggestive of a positive trend for the treatment of immune complex disorders. 相似文献
7.
Pankaj Hari Anand Srivastava Arun Kumar Gupta Rajendra N. Srivastava 《Pediatric nephrology (Berlin, Germany)》1997,11(4):497-498
Acute renal failure (ARF) developed in a 7-week-old infant due to bilateral candidal bezoars (fungal balls) causing obstruction
at the pelviureteric junction. The baby was born at term with an appropriate birthweight, and had been treated with broad-spectrum
antibiotics for respiratory distress and septicemia during the 1st week of life. Recovery from ARF followed renal decompression
with bilateral nephrostomy tube placement and parenteral administration of amphotericin B and 5-flucytosine.
Received August 21, 1996; received in revised form and accepted January 3, 1997 相似文献
8.
Sonoelasticity imaging of prostate cancer: in vitro results 总被引:2,自引:0,他引:2
9.
10.
Guntur E Luis Chee-Khuen Yong Deepak A Singh S Sengupta David SK Choon 《Journal of orthopaedic surgery and research》2007,2(1):22-10