全文获取类型
收费全文 | 25607篇 |
免费 | 2049篇 |
国内免费 | 1820篇 |
专业分类
耳鼻咽喉 | 41篇 |
儿科学 | 254篇 |
妇产科学 | 86篇 |
基础医学 | 3417篇 |
口腔科学 | 117篇 |
临床医学 | 3163篇 |
内科学 | 1083篇 |
皮肤病学 | 54篇 |
神经病学 | 4953篇 |
特种医学 | 1019篇 |
外国民族医学 | 4篇 |
外科学 | 7993篇 |
综合类 | 4034篇 |
现状与发展 | 3篇 |
预防医学 | 518篇 |
眼科学 | 89篇 |
药学 | 1324篇 |
14篇 | |
中国医学 | 424篇 |
肿瘤学 | 886篇 |
出版年
2024年 | 38篇 |
2023年 | 467篇 |
2022年 | 512篇 |
2021年 | 992篇 |
2020年 | 961篇 |
2019年 | 795篇 |
2018年 | 805篇 |
2017年 | 884篇 |
2016年 | 879篇 |
2015年 | 901篇 |
2014年 | 1612篇 |
2013年 | 1894篇 |
2012年 | 1366篇 |
2011年 | 1474篇 |
2010年 | 1344篇 |
2009年 | 1262篇 |
2008年 | 1213篇 |
2007年 | 1331篇 |
2006年 | 1251篇 |
2005年 | 1106篇 |
2004年 | 976篇 |
2003年 | 923篇 |
2002年 | 749篇 |
2001年 | 607篇 |
2000年 | 498篇 |
1999年 | 437篇 |
1998年 | 392篇 |
1997年 | 351篇 |
1996年 | 258篇 |
1995年 | 278篇 |
1994年 | 266篇 |
1993年 | 223篇 |
1992年 | 217篇 |
1991年 | 185篇 |
1990年 | 172篇 |
1989年 | 195篇 |
1988年 | 142篇 |
1987年 | 129篇 |
1986年 | 169篇 |
1985年 | 275篇 |
1984年 | 223篇 |
1983年 | 168篇 |
1982年 | 149篇 |
1981年 | 137篇 |
1980年 | 120篇 |
1979年 | 37篇 |
1978年 | 42篇 |
1977年 | 30篇 |
1976年 | 14篇 |
1975年 | 9篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
61.
Elena V. Preobrazhenskaya Aglaya G. Iyevleva Amina M. Suleymanova Vladislav I. Tiurin Natalia V. Mitiushkina Ilya V. Bizin Alexandr O. Ivanstov Olga A. Gorustovich Kseniya V. Shelekhova Denis Y. Kachanov Svetlana R. Varfolomeeva Vitaliy Y. Roschin Anna N. Kazakova Dmitriy V. Litvinov Tatiana V. Shamanskaya Nikita A. Savelov Evgeny N. Suspitsin Evgeny N. Imyanitov 《Pediatric blood & cancer》2020,67(5)
62.
63.
《Orthopaedics and Trauma》2020,34(6):338-345
Adolescent idiopathic scoliosis is a common condition which is routinely seen in the outpatient department, with a prevalence of 5% in general population. It is important to be able to make this diagnosis but more importantly exclude other causes of scoliosis by carrying out a thorough history and examination. This paper will cover the pathophysiology, presentation, examination, and surgical management of adolescent idiopathic scoliosis. 相似文献
64.
《Neuromodulation》2020,23(8):1130-1136
65.
66.
67.
《Neurocirugía (Asturias, Spain)》2022,33(4):195-198
CSF hypotension arises in the context of a leak of CSF which causes negative intracranial pressure. Sacral fractures result from high-energy trauma which are frequently underdiagnosed. A ten-year-old boy presented with hip pain, after a fall. He mobilized both lower limbs, reported no leg pain, irradiation nor lack of sphincter control. The neurological examination was normal. When asked to stand, he began biparietal headache, nausea and vomiting, which improved laying down. CT scan showed an occult intrasacral meningocele; the MRI revealed collections of CSF along the spine, a S3 fracture with potential laceration of the meningocele and opening of a CSF fistula. Our diagnosis was the CSF hypotension, secondary to the fistula opening. The diagnosis was challenging. The child first presented with symptoms of CSF hypotension without evident cause. The discovery of the meningocele led us to hypothesize the opening of a fistula, a rare diagnosis, later confirmed by MRI. 相似文献
68.
69.
《Journal of Clinical Orthopaedics and Trauma》2020,11(2):184-190
ObjectiveProvide an update of the management options for early onset scoliosis patients, including general assessment, conservative and surgical options.MethodsWe included the updated information about the assessment and management options of Early Onset Scoliosis, taking into consideration the non-fusion methods, including the burden on the patient and their family.ResultsWith the heterogeneity of this population, it is difficult to get a consensus about a unified protocol for management. Accordingly, the surgeon dealing with these cases needs to be aware of the broad range of surgical and non-surgical methods when treating these patients.ConclusionThe main aim of early onset scoliosis treatment is to gain a flexible spine associated with normal lung development and thoracic growth. Management needs to be individualized between the surgeon and patient in relation to the etiology and patient conditions. 相似文献
70.
Amyotrophic lateral sclerosis is a fatal neurodegenerative disorder characterized by upper and lower motor neuron degeneration, which leads to progressive paralysis of skeletal muscles and, ultimately, respiratory failure between 2–5 years after symptom onset. Unfortunately, currently accepted treatments for amyotrophic lateral sclerosis are extremely scarce and only provide modest benefit. As a consequence, a great effort is being done by the scientific community in order to achieve a better understanding of the different molecular and cellular processes that influence the progression and/or outcome of this neuropathological condition and, therefore, unravel new potential targets for therapeutic intervention. Interestingly, a growing number of experimental evidences have recently shown that, besides its well-known physiological roles in the developing and adult central nervous system, the Wnt family of proteins is involved in different neuropathologica conditions, including amyotrophic lateral sclerosis. These proteins are able to modulate, at least, three different signaling pathways, usually known as canonical(β-catenin dependent) and non-canonical(β-catenin independent) signaling pathways. In the present review, we aim to provide a general overview of the current knowledge that supports the relationship between the Wnt family of proteins and its associated signaling pathways and amyotrophic lateral sclerosis pathology, as well as their possible mechanisms of action. Altogether, the currently available knowledge suggests that Wnt signaling modulation might be a promising therapeutic approach to ameliorate the histopathological and functional deficits associated to amyotrophic lateral sclerosis, and thus improve the progression and outcome of this neuropathology. 相似文献