全文获取类型
收费全文 | 2689篇 |
免费 | 125篇 |
国内免费 | 5篇 |
专业分类
耳鼻咽喉 | 22篇 |
儿科学 | 221篇 |
妇产科学 | 96篇 |
基础医学 | 352篇 |
口腔科学 | 78篇 |
临床医学 | 182篇 |
内科学 | 451篇 |
皮肤病学 | 60篇 |
神经病学 | 99篇 |
特种医学 | 37篇 |
外科学 | 329篇 |
综合类 | 73篇 |
一般理论 | 3篇 |
预防医学 | 169篇 |
眼科学 | 225篇 |
药学 | 188篇 |
中国医学 | 15篇 |
肿瘤学 | 219篇 |
出版年
2023年 | 20篇 |
2022年 | 43篇 |
2021年 | 84篇 |
2020年 | 55篇 |
2019年 | 83篇 |
2018年 | 94篇 |
2017年 | 58篇 |
2016年 | 72篇 |
2015年 | 89篇 |
2014年 | 132篇 |
2013年 | 157篇 |
2012年 | 209篇 |
2011年 | 275篇 |
2010年 | 150篇 |
2009年 | 103篇 |
2008年 | 153篇 |
2007年 | 193篇 |
2006年 | 144篇 |
2005年 | 133篇 |
2004年 | 133篇 |
2003年 | 115篇 |
2002年 | 110篇 |
2001年 | 21篇 |
2000年 | 22篇 |
1999年 | 14篇 |
1998年 | 14篇 |
1997年 | 12篇 |
1996年 | 10篇 |
1995年 | 6篇 |
1994年 | 2篇 |
1993年 | 6篇 |
1992年 | 9篇 |
1991年 | 15篇 |
1990年 | 9篇 |
1989年 | 5篇 |
1988年 | 3篇 |
1987年 | 7篇 |
1986年 | 2篇 |
1985年 | 9篇 |
1984年 | 2篇 |
1983年 | 6篇 |
1980年 | 2篇 |
1979年 | 5篇 |
1978年 | 9篇 |
1977年 | 3篇 |
1976年 | 6篇 |
1975年 | 4篇 |
1973年 | 2篇 |
1971年 | 2篇 |
1958年 | 1篇 |
排序方式: 共有2819条查询结果,搜索用时 15 毫秒
991.
992.
993.
Baid-Agrawal S Farris AB Pascual M Mauiyyedi S Farrell ML Tolkoff-Rubin N Collins AB Frei U Colvin RB 《Kidney international》2011,80(8):879-885
Transplant glomerulopathy (TG) has received much attention in recent years as a symptom of chronic humoral rejection; however, many cases lack C4d deposition and/or circulating donor-specific antibodies (DSAs). To determine the contribution of other causes, we studied 209 consecutive renal allograft indication biopsies for chronic allograft dysfunction, of which 25 met the pathological criteria of TG. Three partially overlapping etiologies accounted for 21 (84%) cases: C4d-positive (48%), hepatitis C-positive (36%), and thrombotic microangiopathy (TMA)-positive (32%) TG. The majority of patients with confirmed TMA were also hepatitis C positive, and the majority of hepatitis C-positive patients had TMA. DSAs were significantly associated with C4d-positive but not with hepatitis C-positive TG. The prevalence of hepatitis C was significantly higher in the TG group than in 29 control patients. Within the TG cohort, those who were hepatitis C-positive developed allograft failure significantly earlier than hepatitis C-negative patients. Thus, TG is not a specific diagnosis but a pattern of pathological injury involving three major overlapping pathways. It is important to distinguish these mechanisms, as they may have different prognostic and therapeutic implications. 相似文献
994.
995.
Mandeep S. Bajaj Neelam Pushker Seema Kashyap Balasubramanya R 《Orbit (Amsterdam, Netherlands)》2013,32(4):301-322
Cystadenoma is a benign cystic tumor predominantly affecting the major and minor salivary glands. We present a case of bilateral cystadenoma of the lacrimal gland, which to the best of our knowledge has never been reported earlier. The patient had slowly increasing, painless, bilateral upper eyelid swelling. On examination, the tumors were multilobulated, mobile and transilluminant. Ultrasonography and CT-scan revealed cystic lesions with multiple septations in the region of both lacrimal fossae. Complete excision of the tumors was performed because of their potential for malignant transformation. The histopathological findings confirmed the diagnosis. 相似文献
996.
Rohilla R Singh R Rohilla S Magu NK Devgan A Siwach R 《Strategies in trauma and limb reconstruction (Online)》2011,6(3):127-135
The present retrospective study aims to evaluate the outcome in 41 patients of femoral shaft fractures, who had closed intramedullary
nailing in lateral decubitus position without fracture table or image intensifier. Mean age was 33.2 (range, 18–70) years.
The cannulated reamer in proximal fragment (as intramedullary joystick) and Schanz screw in the distal fragment (as percutaneous
joystick) were simultaneously used to assist closed reduction of the fracture without the use of image intensifier. Closed
reduction was successful in 38 patients. Open reduction was required in 3 patients. Schanz screw was used for closed reduction
in 12 patients. Average number of intra-operative radiographic exposures was 4.4. Two patients had exchange nailing using
large diameter nails. One patient had nonunion. Angular and rotatory malalignments were observed in seven patients. We are
of the opinion that the present technique is a safe and reliable alternative to achieve closed locked intramedullary nailing
and is best suited to stable, less comminuted (Winquist–Hansen types I and II) diaphyseal fractures of the femur. 相似文献
997.
Verma N Verma R Sood S Das BK Singh P Kumar A Kapil A 《The National medical journal of India》2011,24(5):278-279
We report a rare occurrence of primary meningococcal polyarthritis in a 19-year-old man. The fluid in the elbow joint showed Gram-negative diplococci but the culture was sterile. The diagnosis was confirmed by polymerase chain reaction targeting crgA gene of Neisseria meningitidis. 相似文献
998.
999.
1000.