全文获取类型
收费全文 | 1791篇 |
免费 | 190篇 |
国内免费 | 2篇 |
专业分类
耳鼻咽喉 | 17篇 |
儿科学 | 73篇 |
妇产科学 | 54篇 |
基础医学 | 254篇 |
口腔科学 | 18篇 |
临床医学 | 207篇 |
内科学 | 309篇 |
皮肤病学 | 11篇 |
神经病学 | 229篇 |
特种医学 | 96篇 |
外科学 | 231篇 |
综合类 | 32篇 |
预防医学 | 258篇 |
眼科学 | 20篇 |
药学 | 103篇 |
中国医学 | 2篇 |
肿瘤学 | 69篇 |
出版年
2023年 | 14篇 |
2021年 | 22篇 |
2020年 | 17篇 |
2019年 | 16篇 |
2018年 | 27篇 |
2017年 | 28篇 |
2016年 | 24篇 |
2015年 | 27篇 |
2014年 | 43篇 |
2013年 | 69篇 |
2012年 | 60篇 |
2011年 | 72篇 |
2010年 | 43篇 |
2009年 | 54篇 |
2008年 | 58篇 |
2007年 | 64篇 |
2006年 | 50篇 |
2005年 | 65篇 |
2004年 | 56篇 |
2003年 | 63篇 |
2002年 | 50篇 |
2001年 | 58篇 |
2000年 | 62篇 |
1999年 | 59篇 |
1998年 | 30篇 |
1997年 | 28篇 |
1996年 | 33篇 |
1995年 | 20篇 |
1994年 | 21篇 |
1993年 | 16篇 |
1992年 | 30篇 |
1991年 | 49篇 |
1990年 | 43篇 |
1989年 | 51篇 |
1988年 | 44篇 |
1987年 | 32篇 |
1986年 | 45篇 |
1985年 | 39篇 |
1984年 | 28篇 |
1983年 | 27篇 |
1982年 | 28篇 |
1980年 | 19篇 |
1979年 | 25篇 |
1978年 | 21篇 |
1977年 | 15篇 |
1976年 | 13篇 |
1974年 | 17篇 |
1973年 | 23篇 |
1972年 | 18篇 |
1971年 | 12篇 |
排序方式: 共有1983条查询结果,搜索用时 15 毫秒
41.
The postoperative development of nonverbal communication was studied in 29 children, aged 18.2 (SD = 11.54) months, who underwent multilobar resection or hemispherectomy for intractable symptomatic infantile spasms (IS). Using the Early Social Communication Scale, the IS subjects had little, if any, social interaction, joint attention or behavior regulation before surgery. After a mean follow-up of 24 months, most of the children continued to have delayed nonverbal communication skills compared to normal children. Seizure-related, surgical and cognitive factors were unrelated to the postsurgical development of nonverbal communication. The children with right-sided surgery had a statistically significant increase in the use of social interaction but not in other gestural behaviors. Removal of the frontal lobe was not related to the nonverbal communication outcome. The study's findings suggest that impaired use of nonverbal communication might be a feature of surgically treated children with medically intractable IS. Copyright Copyright 1999 S. Karger AG, Basel 相似文献
42.
One hundred thirty-one mothers who were patients of ten physicians were surveyed to determine their compliance with physician-recommended infant feeding practices. For a direct, self-reported measure, the rate of non-compliance was nearly 30 per cent. A second measure, a "compliance score," was computed by comparing mothers' responses to specific questions about the feeding of their babies with their physcians' recommendations for normal, healthy infants. The mean noncompliance rate on this measure was 44 per cent. Differing response patterns regarding specific feeding practices were found for breast-feeding and bottle feeding mothers. To determine selected psychologic factors associated with compliance, health-related attitude and belief scales were originated and validated. Attitudes that "nutrition is important" and a "concern for health" were significantly correlated with the compliance score for breast-feeding mothers. 相似文献
43.
44.
背景/目的:术前通过血管影像学检查对拟行肝移植术的儿童进行评价存在很大的差异。采用二维多普勒超声扫描(US)、磁共振血管造影术(M R A)和常规血管造影术评价血管变化范围。作者通过比较术前的血管成像结果和术中所见,从而确定这些检查的精确度和有效性。方法:将37例接受尸体 相似文献
45.
46.
47.
48.
Matt M. Cirigliano Charlie Guthrie Martin V. Pusic Jennifer E. Lim-Dunham Anderson Spickard III 《Teaching and learning in medicine》2017,29(4):368-372
This Conversations Starter article presents a selected research abstract from the 2017 Association of American Medical Colleges Northeastern Region Group on Educational Affairs annual spring meeting. The abstract is paired with the integrative commentary of three experts who shared their thoughts stimulated by the study. Commentators brainstormed “what's next” with learning analytics in medical education, including advancements in interaction metrics and the use of interactivity analysis to deepen understanding of perceptual, cognitive, and social learning and transfer processes. 相似文献
49.
Gregory P. Giambrone Shelley M. Zansky Millicent Eidson Pamela G. Duncan Louise-Anne McNutt Guthrie S. Birkhead 《Emerging infectious diseases》2013,19(12):1956-1962
The New York State Department of Health (NYSDOH) collected information about hospitalized patients with Guillain-Barré syndrome (GBS) during October 2009–May 2010, statewide (excluding New York City), to examine a possible relationship with influenza A(H1N1)pdm09 vaccination. NYSDOH established a Clinical Network of neurologists and 150 hospital neurology units. Hospital discharge data from the Statewide Planning and Research Cooperative System (SPARCS) were used to evaluate completeness of reporting from the Clinical Network. A total of 140 confirmed or probable GBS cases were identified: 81 (58%) from both systems, 10 (7%) from Clinical Network only, and 49 (35%) from SPARCS-only. Capture–recapture methods estimated that 6 cases might have been missed by both systems. Clinical Network median reporting time was 12 days versus 131 days for SPARCS. In public health emergencies in New York State, a Clinical Network may provide timely data, but in our study such data were less complete than traditional hospital discharge data. 相似文献
50.