全文获取类型
收费全文 | 25788篇 |
免费 | 1335篇 |
国内免费 | 66篇 |
专业分类
耳鼻咽喉 | 364篇 |
儿科学 | 2029篇 |
妇产科学 | 611篇 |
基础医学 | 2950篇 |
口腔科学 | 452篇 |
临床医学 | 1404篇 |
内科学 | 4777篇 |
皮肤病学 | 991篇 |
神经病学 | 1134篇 |
特种医学 | 955篇 |
外科学 | 3859篇 |
综合类 | 916篇 |
一般理论 | 10篇 |
预防医学 | 1268篇 |
眼科学 | 1317篇 |
药学 | 2122篇 |
中国医学 | 140篇 |
肿瘤学 | 1890篇 |
出版年
2023年 | 146篇 |
2022年 | 375篇 |
2021年 | 722篇 |
2020年 | 406篇 |
2019年 | 469篇 |
2018年 | 684篇 |
2017年 | 449篇 |
2016年 | 659篇 |
2015年 | 579篇 |
2014年 | 908篇 |
2013年 | 1081篇 |
2012年 | 1522篇 |
2011年 | 1626篇 |
2010年 | 885篇 |
2009年 | 710篇 |
2008年 | 1231篇 |
2007年 | 1305篇 |
2006年 | 1124篇 |
2005年 | 1068篇 |
2004年 | 958篇 |
2003年 | 894篇 |
2002年 | 807篇 |
2001年 | 727篇 |
2000年 | 684篇 |
1999年 | 597篇 |
1998年 | 247篇 |
1997年 | 182篇 |
1996年 | 144篇 |
1995年 | 137篇 |
1994年 | 115篇 |
1993年 | 130篇 |
1992年 | 356篇 |
1991年 | 390篇 |
1990年 | 342篇 |
1989年 | 358篇 |
1988年 | 308篇 |
1987年 | 277篇 |
1986年 | 268篇 |
1985年 | 279篇 |
1984年 | 219篇 |
1983年 | 181篇 |
1979年 | 241篇 |
1978年 | 158篇 |
1977年 | 148篇 |
1976年 | 135篇 |
1975年 | 163篇 |
1974年 | 154篇 |
1973年 | 176篇 |
1972年 | 138篇 |
1971年 | 122篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
Apoorva Challa Neeraj Mahajan Seema Sood Arti Kapil Bimal Kumar Das Vishnubhatla Sreenivas Somesh Gupta 《Indian journal of medical microbiology》2022,40(3):433-435
Treatment guidelines for management of uncomplicated gonorrhoeae have been recently modified owing to alarming upsurge in azithromycin resistance. This study investigated the prevalence and genetic determinants of gonococcal azithromycin resistance in India. Four (5.7%) of 70 gonococcal isolates were resistant to azithromycin. Of 16 isolates investigated for molecular mechanisms of resistance, 13 (81.3%) and 6 (37.5%) isolates exhibited mutations in coding and promoter regions of mtrR gene, respectively. However, ermA, ermB and ermC genes or mutations in rrl gene were absent in all isolates. Azithromycin resistance is low in India posing no immediate threat to use of dual-therapy for syndromic management. 相似文献
2.
3.
Gupta Archana A. Mammo Danny A. Page Michael A. 《Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie》2020,258(1):167-173
Graefe's Archive for Clinical and Experimental Ophthalmology - To evaluate the long-term safety and efficacy of intrastromal bevacizumab for treatment of deep corneal neovascularization in... 相似文献
4.
5.
6.
Metabolic abnormalities of gastrointestinal mucosa in celiac disease: An in vitro proton nuclear magnetic resonance spectroscopy study 下载免费PDF全文
7.
Dinesh Singhal Nandini Vasdev Arvinder Soin Subash Gupta Samiran Nundy 《Indian journal of gastroenterology》2006,25(4):206-207
It is difficult to distinguish between carcinoid tumors of the pancreatic head and periampullary region and carcinomas preoperatively. Between 1996 and 2002, 125 consecutive pancreaticoduodenectomies done by us for periampullary tumors (14 carcinoids, 111 carcinomas) were analyzed. Patients with carcinoid tumors had significantly younger mean age (48 vs. 54 years), longer history (32 vs. 8 weeks), lower serum total bilirubin levels (1.4 vs. 6.3 mg/dL) and on CT scan, had larger, well-localized tumors (5 cm vs. 2 cm). Their postoperative course was better with no mortality or major morbidity, whereas after resection for carcinoma 7 (6.3%) patients died and 30 (27%) had major postoperative complications. Thus, a tumor of this region in a young patient with indolent history, low bilirubin level and with CT scan depicting a large expansile lesion suggests a carcinoid. Such tumors may be safely resected with low postoperative morbidity and mortality and good long-term prognosis. 相似文献
8.
Rajnish Mago MD John-Paul Gomez MD Namita Gupta MBBS Elisabeth J. S. Kunkel MD 《Current psychiatry reports》2006,8(3):228-233
Anxiety disorders and anxiety symptoms are highly prevalent in the general population and more so in the medically ill. They
have a number of negative consequences for these patients and may worsen the outcome of the medical illness and increase health
care utilization. In the evaluation of these patients, it is of paramount importance to identify the etiology of the anxiety
and, in particular, to differentiate primary from secondary anxiety. Management includes medications (especially benzodiazepines
and selective serotonin reuptake inhibitors) and psychotherapy (particularly cognitive-behavioral therapy). 相似文献
9.
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
10.
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