全文获取类型
收费全文 | 176436篇 |
免费 | 972篇 |
国内免费 | 11篇 |
专业分类
耳鼻咽喉 | 1185篇 |
儿科学 | 6660篇 |
妇产科学 | 2990篇 |
基础医学 | 16555篇 |
口腔科学 | 1582篇 |
临床医学 | 12352篇 |
内科学 | 31037篇 |
皮肤病学 | 666篇 |
神经病学 | 16468篇 |
特种医学 | 9062篇 |
外科学 | 29087篇 |
综合类 | 2318篇 |
预防医学 | 18074篇 |
眼科学 | 2740篇 |
药学 | 9479篇 |
中国医学 | 629篇 |
肿瘤学 | 16535篇 |
出版年
2022年 | 23篇 |
2021年 | 37篇 |
2019年 | 47篇 |
2018年 | 21946篇 |
2017年 | 17384篇 |
2016年 | 19526篇 |
2015年 | 926篇 |
2014年 | 826篇 |
2013年 | 798篇 |
2012年 | 7001篇 |
2011年 | 21047篇 |
2010年 | 18818篇 |
2009年 | 11526篇 |
2008年 | 19520篇 |
2007年 | 21728篇 |
2006年 | 586篇 |
2005年 | 2222篇 |
2004年 | 3436篇 |
2003年 | 4386篇 |
2002年 | 2539篇 |
2001年 | 308篇 |
2000年 | 436篇 |
1999年 | 205篇 |
1998年 | 212篇 |
1997年 | 220篇 |
1996年 | 106篇 |
1995年 | 118篇 |
1994年 | 104篇 |
1993年 | 62篇 |
1992年 | 66篇 |
1991年 | 106篇 |
1990年 | 142篇 |
1989年 | 90篇 |
1988年 | 77篇 |
1987年 | 66篇 |
1986年 | 42篇 |
1985年 | 43篇 |
1984年 | 41篇 |
1983年 | 35篇 |
1982年 | 31篇 |
1980年 | 44篇 |
1974年 | 22篇 |
1970年 | 25篇 |
1969年 | 23篇 |
1938年 | 60篇 |
1937年 | 25篇 |
1935年 | 22篇 |
1934年 | 30篇 |
1932年 | 56篇 |
1930年 | 46篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
81.
Raymond J. Gibbons 《Journal of nuclear cardiology》1994,1(5):S118-S130
Both radionuclide angiography and myocardial perfusion imaging provide important insights that determine the management of patients with stable coronary artery disease. Both nuclear cardiology procedures have clearly demonstrated use in the noninvasvie identification of severe (left main or three-vessel) coronary artery disease and the noninvasive assessment of prognosis and thereby determine which patients should be sent to coronary angiography. Both radionuclide angiography and myocardial perfusion imaging provide prognostic information that is independent of resting left ventricular function and coronary anatomy and thereby influence the decision regarding which patients should be sent to coronary revascularization. This review considers the evidence supporting the uses of these nuclear cardiology procedures and provides suggestions regarding their cost-effective application. 相似文献
82.
83.
Richard N. Bradley 《Disease Management & Health Outcomes》2003,11(5):321-325
Acute stroke affects large numbers of people worldwide. It causes significant morbidity and mortality. Data support the hypothesis that the public is not familiar with either the risk factors or the signs of stroke. Educating the public about stroke may result in a lower incidence of the disease as individuals modify their risk factors, and in improved outcomes as a result of reductions in delays to treatment. There is clear and convincing evidence that reducing delays to treatment of patients with acute stroke results in improved outcomes. Public education programs should be broad-based, tailored to individual audiences, and carry a common theme. 相似文献
84.
85.
86.
87.
Two cases are reported in which, after ACL reconstruction with autologous hamstring grafts, tibial polylactide interference
screws migrated into the knee joint. Clinically, both patients presented with recurrent locking of the joint. In one case,
a broken 15 mm-long tip of the screw was found intra-articularly. In the other case, the whole screw had migrated into the
joint cavity. The degradation process of polylactic acid, operative technique and bone quality are discussed as possible reasons
for these complications. 相似文献
88.
89.
Koichi Murata Yasuaki Nakagawa Takashi Suzuki Masahiko Kobayashi Seiya Kotani Takashi Nakamura 《Knee surgery, sports traumatology, arthroscopy》2007,15(10):1261-1263
Intraosseous ganglia of the glenoid are rare, and their etiology is unknown. This report describes a case of an intraosseous
ganglion about to cause fracture of the glenoid. The patient was a 61-year-old woman with a painful left shoulder with a limited
range of motion. Her symptoms did not improve after non-operative treatment. Arthroscopic examination showed a cartilage defect
and erosion in the posteroinferior portion of the glenoid, behind which computed tomography (CT) showed a cystic lesion of
the glenoid. There was no communication between the cyst and the joint space. The patient was treated by curettage and an
autogenous cancellous bone graft from the iliac crest. Two years after the operation, the patient was almost free from pain,
and CT showed good integration of the bone graft. 相似文献
90.