全文获取类型
收费全文 | 14508篇 |
免费 | 1077篇 |
国内免费 | 59篇 |
专业分类
耳鼻咽喉 | 69篇 |
儿科学 | 457篇 |
妇产科学 | 304篇 |
基础医学 | 2102篇 |
口腔科学 | 161篇 |
临床医学 | 1866篇 |
内科学 | 2815篇 |
皮肤病学 | 213篇 |
神经病学 | 1668篇 |
特种医学 | 358篇 |
外科学 | 1544篇 |
综合类 | 166篇 |
一般理论 | 18篇 |
预防医学 | 1518篇 |
眼科学 | 408篇 |
药学 | 899篇 |
中国医学 | 32篇 |
肿瘤学 | 1046篇 |
出版年
2024年 | 20篇 |
2023年 | 134篇 |
2022年 | 194篇 |
2021年 | 440篇 |
2020年 | 256篇 |
2019年 | 383篇 |
2018年 | 437篇 |
2017年 | 301篇 |
2016年 | 327篇 |
2015年 | 395篇 |
2014年 | 520篇 |
2013年 | 796篇 |
2012年 | 1180篇 |
2011年 | 1113篇 |
2010年 | 565篇 |
2009年 | 562篇 |
2008年 | 937篇 |
2007年 | 976篇 |
2006年 | 893篇 |
2005年 | 866篇 |
2004年 | 825篇 |
2003年 | 733篇 |
2002年 | 693篇 |
2001年 | 175篇 |
2000年 | 126篇 |
1999年 | 149篇 |
1998年 | 161篇 |
1997年 | 152篇 |
1996年 | 114篇 |
1995年 | 91篇 |
1994年 | 77篇 |
1993年 | 84篇 |
1992年 | 87篇 |
1991年 | 69篇 |
1990年 | 54篇 |
1989年 | 67篇 |
1988年 | 72篇 |
1987年 | 54篇 |
1986年 | 67篇 |
1985年 | 43篇 |
1984年 | 51篇 |
1983年 | 53篇 |
1982年 | 62篇 |
1981年 | 50篇 |
1980年 | 40篇 |
1979年 | 25篇 |
1977年 | 19篇 |
1976年 | 25篇 |
1974年 | 25篇 |
1973年 | 18篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
2.
Kuo-yi Jade Chang MHealthEc MHM BSc Lisa Lorraine Dillon MSpecEd BPsych Lil Deverell COMS PhD MEd GradDipO&M BEd Mei Ying Boon PhD BOptom FAAO Lisa Keay PhD MPH BOptom 《Clinical & experimental optometry》2020,103(4):434-448
Despite orientation and mobility (O&M) being a significant factor determining quality of life of people with low vision or blindness, there are no gold standard measures or agreement on how to measure O&M performance. In the first part of this systematic review, an inventory of O&M outcome measures used by recent studies to assess the performance of orientation and/or mobility of adults with vision impairment (low vision and blindness) is presented. A wide variety of O&M outcome measures have been implemented in different fields of study, such as epidemiologic research and interventional studies evaluating training, assistive technology, vision rehabilitation and vision restoration. The most frequent aspect of outcome measures is efficiency such as time, distance, speed and percentage of preferred walking speed, followed by obstacle contacts and avoidance, and dis/orientation and veering. Other less commonly used aspects are target identification, safety and social interaction and self-reported outcome measures. Some studies employ sophisticated equipment to capture and analyse O&M performance in a laboratory setting, while others carry out their assessment in real-world indoor or outdoor environments. In the second part of this review, the appropriateness of implementing the identified outcome measures to assess O&M performance in clinical and functional O&M practice is evaluated. Nearly a half of these outcome measures meet all four criteria of face validity (either clinical or functional), responsiveness, reliability and feasibility and have the potential to be implemented in clinical or functional O&M practice. The findings of this review confirm the complicated and dynamic nature of O&M. Multiple measures are required in any evaluation of O&M performance to facilitate holistic assessment of O&M abilities and limitations of each individual. 相似文献
3.
Olga A. Klein Avril Drummond Jacqueline R. Mhizha-Murira Laura Mansford Roshan dasNair 《Neuropsychological rehabilitation》2019,29(4):491-512
While previous randomised controlled trials and meta-analyses offer only limited evidence for the effectiveness of cognitive rehabilitation, qualitative studies examining patient perspectives report more positive outcomes. This meta-synthesis of qualitative studies examined patient perspectives of cognitive rehabilitation for memory, attention, and executive function problems in people with multiple sclerosis. Using set eligibility criteria, we screened electronic databases, reference lists, and academic networks for relevant papers. Seven papers (195 participants) were selected. Two independent researchers conducted quality appraisals of papers. Data analysis, guided by the thematic synthesis approach, yielded six main themes. These suggested that patients benefitted from the group environment in rehabilitation. Cognitive rehabilitation facilitated the participants’ reflection and awareness of their cognitive deficits, and was associated with increased knowledge and understanding of their illness. Increased strategy use was reported and associated with improvements in cognitive functioning and greater confidence and perseverance. Participants reported emotional and social improvements, and felt more optimistic. Overall, these changes had a positive impact on participants’ quality of life. This synthesis of qualitative studies indicates that people with multiple sclerosis who experience cognitive deficits benefit from cognitive rehabilitation programmes. This finding must, however, be viewed in light of the limitations of this meta-synthesis. The meta-synthesis was registered in the PROSPERO database under CRD42017040148. 相似文献
4.
5.
Michelle E. Wilson Charles Kim Jacqueline Carrasco 《Orbit (Amsterdam, Netherlands)》2016,35(5):288-291
A 48-year-old smoker with a history of hyperthyroidism treated 10 years prior to presentation with radioactive iodine ablation of the thyroid gland presented to his ophthalmologist with a 2-week history of transient loss of vision in the right eye occurring for 1 to 2 hours each morning. He denied ocular pain, diplopia or change in the prominence of one or both eyes. Examination revealed 2 mm of relative proptosis on the right, bilateral temporal flare and lower lid retraction. There was minimal upper lid retraction and no evidence of lid lag. Ocular motility was full. Dilated fundoscopic examination revealed bilateral optic nerve edema, right more than left. CT of the orbit demonstrated enlargement of the extraocular muscles bilaterally with marked enlargement of the right medial rectus and left inferior rectus muscles resulting in crowding at the orbital apex bilaterally. Laboratory testing revealed the patient to be hyperthyroid. The patient was treated with high dose oral steroids followed by orbital radiation. Hyperthyroidism was managed by the patient’s primary care physician. Visual symptoms rapidly improved with oral steroids and orbital radiation. Optic nerve edema completely resolved. Repeat CT imaging demonstrated a reduction in the enlargement of the extraocular muscles with relief of bilateral optic nerve compression. 相似文献
6.
van der Heijden Amber A. W. A. de Bruijne Martine C. Nijpels Giel Hugtenburg Jacqueline G. 《International journal of clinical pharmacy》2019,41(4):963-971
International Journal of Clinical Pharmacy - Background Drug-related problems (DRP) following hospital discharge may cause morbidity, mortality and hospital re-admissions. It is unclear whether a... 相似文献
7.
8.
9.