全文获取类型
收费全文 | 153696篇 |
免费 | 10100篇 |
国内免费 | 771篇 |
专业分类
耳鼻咽喉 | 1419篇 |
儿科学 | 3948篇 |
妇产科学 | 2772篇 |
基础医学 | 20616篇 |
口腔科学 | 3459篇 |
临床医学 | 14833篇 |
内科学 | 33021篇 |
皮肤病学 | 2877篇 |
神经病学 | 14831篇 |
特种医学 | 6149篇 |
外国民族医学 | 6篇 |
外科学 | 23111篇 |
综合类 | 1905篇 |
现状与发展 | 2篇 |
一般理论 | 140篇 |
预防医学 | 11133篇 |
眼科学 | 3206篇 |
药学 | 10509篇 |
2篇 | |
中国医学 | 245篇 |
肿瘤学 | 10383篇 |
出版年
2023年 | 827篇 |
2022年 | 1239篇 |
2021年 | 2832篇 |
2020年 | 1962篇 |
2019年 | 2825篇 |
2018年 | 3434篇 |
2017年 | 2673篇 |
2016年 | 3054篇 |
2015年 | 3523篇 |
2014年 | 5049篇 |
2013年 | 6828篇 |
2012年 | 10550篇 |
2011年 | 11160篇 |
2010年 | 6367篇 |
2009年 | 6056篇 |
2008年 | 10224篇 |
2007年 | 10900篇 |
2006年 | 10380篇 |
2005年 | 10618篇 |
2004年 | 10022篇 |
2003年 | 9498篇 |
2002年 | 8933篇 |
2001年 | 1492篇 |
2000年 | 1127篇 |
1999年 | 1611篇 |
1998年 | 2110篇 |
1997年 | 1649篇 |
1996年 | 1429篇 |
1995年 | 1299篇 |
1994年 | 1152篇 |
1993年 | 1122篇 |
1992年 | 791篇 |
1991年 | 795篇 |
1990年 | 643篇 |
1989年 | 614篇 |
1988年 | 568篇 |
1987年 | 588篇 |
1986年 | 513篇 |
1985年 | 547篇 |
1984年 | 637篇 |
1983年 | 567篇 |
1982年 | 761篇 |
1981年 | 703篇 |
1980年 | 603篇 |
1979年 | 371篇 |
1978年 | 377篇 |
1977年 | 403篇 |
1976年 | 342篇 |
1975年 | 297篇 |
1974年 | 252篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
51.
52.
Sumon Nandi Steven Maschke Peter J. Evans Jeffrey N. Lawton 《Hand (New York, N.Y.)》2009,4(4):368-379
Elbow motion is essential for upper extremity function to position the hand in space. Unfortunately, the elbow joint is prone
to stiffness following a multitude of traumatic and atraumatic etiologies. Elbow stiffness can be diagnosed with a complete
history and physical exam, supplemented with appropriate imaging studies. The stiff elbow is challenging to treat, and thus,
its prevention is of paramount importance. When this approach fails, non-operative followed by operative treatment modalities
should be pursued. Upon initial presentation in those who have minimal contractures of 6-month duration or less, static and
dynamic splinting, serial casting, continuous passive motion, occupational/physical therapy, and manipulation are non-operative
treatment modalities that may be attempted. A stiff elbow that is refractory to non-operative management can be treated surgically,
either arthroscopically or open, to eliminate soft tissue or bony blocks to motion. In the future, efforts to prevent and
treat elbow stiffness may target the basic science mechanisms involved. Our purpose was to review the etiologies, classification,
evaluation, prevention, operative, and non-operative treatment of the stiff elbow. 相似文献
53.
54.
55.
Contin Educ Anaesth Crit 相似文献
56.
Sabine J Presser Guido Schumacher Ruth Neuhaus Peter Thuss-Patience Jens Stieler Peter Neuhaus 《Liver transplantation》2007,13(3):443-450
The purpose of the study was to determine the incidence, risk factors, treatment, and influence on survival of patients with de novo esophageal cancer after liver transplantation (LT). From 1988 to 2006, 1,926 patients underwent LT in our institution. A total of 9 patients (0.5%) developed a de novo esophageal cancer and 1 patient a cancer of the cardia (0.05%). A retrospective analysis was performed to reveal underlying diseases, timeframes between LT and appearance of cancer, predisposing factors, cancer therapy, complications, immunosuppressive regimens, and survival. Of our 10 patients, 7 (70%) suffered from esophageal squamous cell carcinoma (SCC) and 3 patients (30%) developed an adenocarcinoma, including the patient with cancer of the cardia. A total of 9 patients were transplanted due to alcoholic cirrhosis; 1 patient suffered from hepatocellular carcinoma in nonA-nonB hepatitis-related cirrhosis. Median time to tumor diagnosis was 51 months after transplantation. A total of 5 patients were treated conservatively with combined radiochemotherapy and 5 underwent surgical resection. Patients with radiochemotherapy showed a mean survival of 14.8 months vs. 24.8 months for the patients of the surgery group. No major postoperative complication has been observed. A total of 2 patients of the surgery group are still alive after a follow-up of 15 and 89 months. In conclusion, de novo esophageal and cancer of the cardia after LT is a rare event. In spite of immunosuppression, no increased complication rate has been observed. Patients may have a survival benefit from surgical resection. 相似文献
57.
58.
Fibrillary glomerulonephritis and immunotactoid glomerulopathy. 总被引:6,自引:0,他引:6
59.
Kurt Pettersson Peter Wagnsj? 《Nordisk plastikkirurgisk forening [and] Nordisk klubb for handkirurgi》2004,38(3):166-171
Twelve patients had limited arthrodesis between the scaphoid and the lunate for chronic static scapholunate dissociation using internal plate osteosynthesis. The median time between the injury and surgery was 50 months (range 9-180). They were followed up for a year postoperatively. Preoperative symptoms were pain, functional impairment, and restricted movement. During operation the scapholunate interosseous ligament was completely torn and the scaphoid malrotated in all patients. The range of motion was measured preoperatively and postoperatively, and the unaffected side used for control. For all patients except one postoperative extension, flexion, and radial deviation had considerably decreased. However, supination increased in seven of 12 patients postoperatively and so did pronation in seven of 12 patients. One patient (case 12) had an improved range of motion postoperatively in all directions. The mean grip strength was 76% of the unaffected side preoperatively, and has increased to 85% postoperatively. We found that bone healing was rare and most arthrodeses healed by a fibrous union. We found no correlation with preoperative arthrosis and clinical outcome. One patient had retired from work before operation because of back pain and one because of age. Two patients had taken early retirement because of wrist pain, and one patient was still on sick-leave at the follow-up a year postoperatively. Five patients returned to full-time work and two patients to part-time work. Four patients were on long-term sick-leave preoperatively and three of them returned to their previous occupations. Analysis of the patients' subjective outcome (including pain and functional scores) showed overall satisfaction, and objective data show that scapholunate arthrodesis for chronic static scapholunate dissociation provides substantial improvement over the preoperative condition. 相似文献
60.