全文获取类型
收费全文 | 1359篇 |
免费 | 80篇 |
国内免费 | 8篇 |
专业分类
耳鼻咽喉 | 24篇 |
儿科学 | 38篇 |
妇产科学 | 45篇 |
基础医学 | 134篇 |
口腔科学 | 57篇 |
临床医学 | 90篇 |
内科学 | 280篇 |
皮肤病学 | 24篇 |
神经病学 | 61篇 |
特种医学 | 86篇 |
外科学 | 382篇 |
综合类 | 18篇 |
预防医学 | 28篇 |
眼科学 | 86篇 |
药学 | 63篇 |
肿瘤学 | 31篇 |
出版年
2024年 | 1篇 |
2023年 | 8篇 |
2022年 | 9篇 |
2021年 | 30篇 |
2020年 | 17篇 |
2019年 | 29篇 |
2018年 | 38篇 |
2017年 | 31篇 |
2016年 | 49篇 |
2015年 | 66篇 |
2014年 | 72篇 |
2013年 | 103篇 |
2012年 | 105篇 |
2011年 | 104篇 |
2010年 | 58篇 |
2009年 | 51篇 |
2008年 | 87篇 |
2007年 | 75篇 |
2006年 | 68篇 |
2005年 | 69篇 |
2004年 | 92篇 |
2003年 | 58篇 |
2002年 | 50篇 |
2001年 | 41篇 |
2000年 | 24篇 |
1999年 | 25篇 |
1998年 | 7篇 |
1997年 | 6篇 |
1996年 | 5篇 |
1995年 | 4篇 |
1994年 | 8篇 |
1993年 | 2篇 |
1992年 | 4篇 |
1991年 | 2篇 |
1990年 | 6篇 |
1989年 | 7篇 |
1988年 | 8篇 |
1987年 | 6篇 |
1986年 | 1篇 |
1985年 | 4篇 |
1984年 | 3篇 |
1983年 | 2篇 |
1982年 | 2篇 |
1981年 | 2篇 |
1980年 | 4篇 |
1979年 | 2篇 |
1976年 | 1篇 |
1975年 | 1篇 |
排序方式: 共有1447条查询结果,搜索用时 109 毫秒
91.
92.
93.
Conservative treatment of scapular neck fracture: the effect of stability and glenopolar angle on clinical outcome 总被引:3,自引:0,他引:3
The aim of this study was to determine the effect of stability and glenopolar angle on the clinical outcome of conservatively treated scapular neck fractures. Eighteen patients with scapular neck fractures were treated with conservative treatment. Twelve of the 18 patients had surgical neck fractures, whilst six of them had anatomical neck fractures. Anteroposterior radiographs and computerised tomography were performed for each patient. Glenopolar angle was measured through anteroposterior radiographs in the scapular plane. After 3-5 weeks of immobilisation, a rehabilitation programme was started, throughout which all the patients were treated in a 3-phase rehabilitation programme. The mean follow-up was 25 months, and the Constant score was 78.83+/-8.12 point (range: 68-94 points). Patient gender and the type of scapular neck fractures had no effect on functionality or clinical outcome (p>0.05), whilst associated injuries significantly affected the clinical outcome (p<0.05). There was a positive correlation between the Constant score and glenopolar angle (r=0.891, p<0.05) and between the age and glenopolar angle (r=0.472, p<0.05). 相似文献
94.
An interesting case of a giant renal hydatid cyst is presented. The big cystic mass detected at ultrasonography (US) and computerized
tomography (CT) in a ten-year-old girl looked like a simple cyst. No germinative membrane or any other radiological sign of
a hydatid cyst was present. The operation was planned for a simple cyst; but was altered, after an intraoperative diagnostic
needle sampling brought out the characteristic fluid of hydatid cyst. We came to the conclusion that hydatid cystic masses
may not always present with their characteristic radiological findings; and that extreme caution should be practiced by the
radiologist and the surgeon in order to prevent iatrogenic echinococcal dissemination. 相似文献
95.
The impact of proximal fibula fractures in the prognosis of tibial plateau fractures: a novel classification 总被引:1,自引:0,他引:1
Murat Bozkurt Sacit Turanli Mahmut Nedim Doral Seyfettin Karaca Metin Doğan Hakan Şeşen Mustafa Basbozkurt 《Knee surgery, sports traumatology, arthroscopy》2005,13(4):323-328
Fifty-five patients who presented with the complaint of tibia plateau fractures between January 1998 and November 2001 were retrospectively evaluated. The evaluation was based on their treatment modality. Twenty-five conservatively-treated patients (group 1) and 30 surgically-treated patients (group 2) were evaluated. In group 1, seven patients with proximal fibula fractures had lateral hamstring tightness. Five out of these seven patients had concomitant lateral knee pain. Similarly, nine patients with proximal fibula fractures in group 2 had lateral hamstring tightness, and seven patients in the same group suffered from lateral knee pain. The patients with no fibula proximal fracture in both groups had no hamstring tightness or lateral knee pain. The proximal fibula in the knee joint and its anatomical structures are of utmost importance for the anatomical integrity of the knee and its normal functions. The fibula has rich anatomical relations, some of which are important structures of the knee. These anatomical structures and the fibula provide stability of the knee joint and its functions as well as being an important mechanical support to the knee joint. Therefore, the knee joint will receive the negative effects from the pathologies of the bone or soft tissue that may occur in fibula fractures. 相似文献
96.
Subarachnoid hemorrhage (SAH) of spinal origin is a rare entity accounting for approximately 1% of all cases of SAH. Its most frequent causes are trauma and vascular malformations. Although primary spinal tumors, especially ependymomas, are also relatively common causes, SAH secondary to a metastatic spinal tumor arising from outside the central nervous system is an extremely rare condition; only one case has been reported in the literature. The authors present a case of spinal meningeal carcinomatosis secondary to cutaneous malignant melanoma in which the patient presented with only symptoms of SAH. Although very rare, this case underscores several factors. 1) Spinal SAH due to spinal metastases should be considered in the differential diagnosis of patients with previously known malignancy. 2) Spinal SAH may manifest without paraparesis or sensory deficit. 3) Magnetic resonance imaging of the spinal cord may be important to determine the source of SAH in patients in whom four-vessel cerebral angiography demonstrates no abnormal findings. 相似文献
97.
Ozbek S Ozcan M Noyan B Kurt MA Tirelioğlu S Bozkurt C Karaca K Filiz G 《Annals of plastic surgery》2005,55(3):281-288
The aim of this experimental study was to evaluate the effects of end-to-side coaptation of the proximal end of a severed nerve to the same intact nerve, in addition to traditional end-to-side coaptation of the distal end, with an aim to use the intact nerve as a nerve conduit in a rat model and to compare the functional and histologic results of this modality to those obtained after nerve grafting and traditional end-to-side nerve coaptation. In group A, a peroneal nerve defect measuring 1 cm was created in the left hind limb, and a nerve graft 1 cm long was used to bridge the defect. In group B, only the distal stump of the peroneal nerve was coapted to the intact tibial nerve. In group C, both ends of the peroneal nerve defect were coapted to the intact tibial nerve in an end-to-side fashion 1.5 cm apart from each other, and in group D, the peroneal nerve defect was left unrepaired. Group E was consisted of nonoperated peroneal nerves that were used to obtain normative data. Although significantly higher myelinated axon densities were observed in groups B and C compared with group A and group E, total number of the myelinated axons was significantly higher only in group C. Peroneal functional index assessments demonstrated that nerve recovery in the peroneal nerve was similar in groups A and C, and both were better than those observed in groups B and D. Collectively, these results suggest that end-to-side coaptation of both ends of a severed nerve to an intact nerve, in case of a nerve defect in this length, may serve as an alternative for nerve grafting. 相似文献
98.
Arnstein NB; Shapiro B; Ekhauser FE; Dmuchowski CF; Knol JA; Strodel WE; Nakajo M; Swanson DP 《Radiology》1985,156(2):501-504
Mechanisms by which gastroplasty for morbid obesity causes weight loss are poorly understood. We studied the role of altered gastric emptying in 50 patients before surgery, 1-4 weeks after surgery, and 2-24 months after surgery using technetium-99m pentetate in water for liquid meals and a Tc-99m styrene divinylbenzene copolymer resin in oatmeal for semisolid meals. We determined the emptying half-times of the stomach before and after surgery in the proximal and distal compartments. The proximal compartment emptied promptly in the early and late postoperative periods. The distal compartment emptied liquids at rates similar to those before surgery, while the late postoperative emptying of semisolids was significantly faster. The stoma connecting the two compartments thus permits rapid transit of liquids and semisolids without delay of distal compartment emptying. No correlation was seen between the emptying half-times or changes thereof and eventual weight loss. Delayed gastric emptying is therefore not the mechanism for satiety and weight loss after gastroplasty has been performed. 相似文献
99.
Angiolipoma of the neck: a case report 总被引:1,自引:0,他引:1
Angiolipomas of the neck are extremely rare; to our knowledge, only 2 cases have been previously reported. We report a new case, which occurred in a 28-year-old woman. The mass was totally resected, and the patient showed no recurrence at the 18-month follow-up. 相似文献
100.
Bozkurt MC Tağil SM Ozçakar L Ersoy M Tekdemir I 《Clinical anatomy (New York, N.Y.)》2005,18(4):274-280
The aim of this study was to assess the anatomical variations, especially the anomalous muscles passing through Guyon's canal and the fibrous arch forming the piso-hamate hiatus, which may play a role in ulnar tunnel syndrome. We have also focused on the relation of these structures with specific concern to the ulnar nerve. Nineteen embalmed cadavers (37 hands and forearms) were dissected. A fibrous arch extending between the pisiform and the hook of the hamate was observed in 21 hands. In majority of the cases flexor digiti minimi muscle was found to originate only from this arch. An anomalous muscle was disclosed in six hands with four of them passing through the piso-hamate hiatus with the deep branch of the ulnar nerve. In two of four cases, the superficial branch of the ulnar nerve was also accompanying the deep branch of the ulnar nerve beneath the anomalous muscle and through the piso-hamate hiatus. Because these anomalous muscles were generally found to course through the piso-hamate hiatus with the branches of the ulnar nerve, we conclude that the distal portion of the Guyon's canal has a relatively higher risk for ulnar nerve entrapment. We believe that surgeons operating on this region should take into account these various anatomic structures. 相似文献