全文获取类型
收费全文 | 24090篇 |
免费 | 1208篇 |
国内免费 | 155篇 |
学科分类
医药卫生 | 25453篇 |
出版年
2023年 | 185篇 |
2022年 | 183篇 |
2021年 | 814篇 |
2020年 | 460篇 |
2019年 | 664篇 |
2018年 | 878篇 |
2017年 | 573篇 |
2016年 | 650篇 |
2015年 | 758篇 |
2014年 | 1005篇 |
2013年 | 1205篇 |
2012年 | 1994篇 |
2011年 | 1926篇 |
2010年 | 1164篇 |
2009年 | 990篇 |
2008年 | 1622篇 |
2007年 | 1580篇 |
2006年 | 1524篇 |
2005年 | 1422篇 |
2004年 | 1242篇 |
2003年 | 1134篇 |
2002年 | 1106篇 |
2001年 | 164篇 |
2000年 | 117篇 |
1999年 | 166篇 |
1998年 | 186篇 |
1997年 | 151篇 |
1996年 | 117篇 |
1995年 | 146篇 |
1994年 | 114篇 |
1993年 | 110篇 |
1992年 | 78篇 |
1991年 | 66篇 |
1990年 | 84篇 |
1989年 | 67篇 |
1988年 | 67篇 |
1987年 | 41篇 |
1986年 | 68篇 |
1985年 | 48篇 |
1984年 | 61篇 |
1983年 | 55篇 |
1982年 | 59篇 |
1981年 | 40篇 |
1980年 | 46篇 |
1979年 | 35篇 |
1978年 | 40篇 |
1977年 | 24篇 |
1976年 | 20篇 |
1973年 | 27篇 |
1972年 | 22篇 |
排序方式: 共有10000条查询结果,搜索用时 62 毫秒
1.
Exhaled nitric oxide in children with allergic rhinitis: A potential biomarker of asthma development 下载免费PDF全文
2.
María del Carmen Azorín Samper Marta Hernandorena Gonzlez Alberto Ibez Arias Sandra Díaz Sierra Marta Bertolo Domínguez Flix Checa Ayet 《The breast journal》2020,26(2):252-254
Breast pseudoaneurysms after a core needle biopsy are a rare complication with a low incidence. However, it is important to be aware of the possibility of complications that require treatment. 相似文献
3.
4.
5.
Iacopo Chiodini Daniela Merlotti Alberto Falchetti 《Expert opinion on pharmacotherapy》2020,21(6):721-732
ABSTRACT
Introduction
Glucocorticoid (GC) induced osteoporosis (GIOP) is the most common form of secondary osteoporosis. It develops in a dose and time dependent manner, due to a rapid and transient increase in bone resorption, followed by the inhibition of bone formation. 相似文献6.
7.
8.
9.
10.
Silvia Cmara M Concepcin Fournier Patricia Cordero Javier Melero Fernando Robles Borja Esteso M Teresa Vara Serafn Rodrguez lvaro Lassaletta Marcelo Budke 《Cerebellum (London, England)》2020,19(1):78-88
Cerebellar mutism syndrome (CMS) is a common surgical sequela in children following posterior fossa tumor (PFT) resection. Here, we analyze the neuropsychological features associated with PFT in children, focusing particularly on the differential profiles associated with the presence or absence of CMS after surgery. We further examine the effect of post-resection treatments, tumor type, and presence/absence of hydrocephalus on surgical outcome. Thirty-six patients diagnosed with PFT (19 with and 17 without CMS) and 34 age- and gender-matched healthy controls (HCs) were recruited. A comprehensive neuropsychological evaluation was conducted in all patients postoperatively and in HCs, including an assessment of general cognitive ability, motor skills, perception, language, memory, attention, executive functions, and academic competence. CMS was found to be a clinical marker of lower neuropsychological profile scores across all cognitive domains except auditory-verbal processing and visual memory tasks. PFT patients not presenting CMS exhibited milder impairment in intellectual functioning, motor tasks, reasoning, language, verbal learning and recall, attention, cognitive executive functions, and academic competence. High-grade tumors were associated with slower processing speed and verbal delayed recall as well as alterations in selective and sustained attention. Hydrocephalus was detrimental to motor functioning and nonverbal reasoning. Patients who had undergone surgery, chemotherapy, and radiotherapy presented impaired processing speed, verbal learning, and reading. In addition to the deleterious effects of PFT, post-resection PFT treatments have a negative cognitive impact. These undesired consequences and the associated tumor-related damage can be assessed using standardized, long-term neuropsychological evaluation when planning rehabilitation. 相似文献