全文获取类型
收费全文 | 31135篇 |
免费 | 2807篇 |
国内免费 | 45篇 |
专业分类
耳鼻咽喉 | 368篇 |
儿科学 | 1144篇 |
妇产科学 | 683篇 |
基础医学 | 3983篇 |
口腔科学 | 493篇 |
临床医学 | 3959篇 |
内科学 | 5530篇 |
皮肤病学 | 598篇 |
神经病学 | 3015篇 |
特种医学 | 847篇 |
外国民族医学 | 1篇 |
外科学 | 4289篇 |
综合类 | 713篇 |
一般理论 | 24篇 |
预防医学 | 3718篇 |
眼科学 | 436篇 |
药学 | 2202篇 |
中国医学 | 49篇 |
肿瘤学 | 1935篇 |
出版年
2023年 | 247篇 |
2022年 | 348篇 |
2021年 | 828篇 |
2020年 | 456篇 |
2019年 | 804篇 |
2018年 | 935篇 |
2017年 | 647篇 |
2016年 | 634篇 |
2015年 | 725篇 |
2014年 | 999篇 |
2013年 | 1433篇 |
2012年 | 2033篇 |
2011年 | 2112篇 |
2010年 | 1150篇 |
2009年 | 1026篇 |
2008年 | 1647篇 |
2007年 | 1655篇 |
2006年 | 1601篇 |
2005年 | 1593篇 |
2004年 | 1434篇 |
2003年 | 1364篇 |
2002年 | 1320篇 |
2001年 | 787篇 |
2000年 | 698篇 |
1999年 | 610篇 |
1998年 | 279篇 |
1997年 | 241篇 |
1996年 | 266篇 |
1995年 | 205篇 |
1994年 | 211篇 |
1993年 | 180篇 |
1992年 | 463篇 |
1991年 | 399篇 |
1990年 | 426篇 |
1989年 | 387篇 |
1988年 | 324篇 |
1987年 | 324篇 |
1986年 | 268篇 |
1985年 | 303篇 |
1984年 | 245篇 |
1983年 | 187篇 |
1982年 | 156篇 |
1981年 | 124篇 |
1980年 | 139篇 |
1979年 | 195篇 |
1978年 | 161篇 |
1977年 | 117篇 |
1976年 | 110篇 |
1974年 | 137篇 |
1973年 | 118篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
91.
92.
Marilyn Ross Kelly Brewer F Virginia Wright Anne Agur 《Pediatric physical therapy》2007,19(4):288-295
PURPOSE: The purpose of our study was to obtain a clear understanding of the various diagnoses within the closed neural tube defect (NTD) groups included in the large database of clients in our Spina Bifida Clinic and a clear picture of the outcomes for the various NTD groups. METHODS: One hundred and four clients with closed NTD were categorized using a classification system devised by Tortori-Donati et al. Various clinical markers were investigated, including ambulation and the need for orthoses and wheelchairs. RESULTS: Most clients are ambulatory, requiring an orthoses, but not a wheelchair, despite the high incidence of ankle/foot abnormalities. CONCLUSIONS: This classification system has enhanced our knowledge of this group of clients, provided a greater understanding of the varied outcomes of these children and clinical management required. 相似文献
93.
J. F. McKenna 《Stress and health》1987,3(1):71-74
This article investigates the relationship between perceptions of equity, occupational stress and employee commitment in a health care setting. Significant relationships were found among these variables and implications for the health care field are discussed. 相似文献
94.
95.
M Bassiouny B E Hirsch R H Kelly D B Kamerer S P Cass 《The American journal of otology》1992,13(6):552-555
The diagnosis and management of perilymphatic fistula has received considerable attention in recent years. Despite the use of sophisticated technology, the diagnosis of perilymphatic fistula continues to rest primarily upon clinical suspicion and the exclusion of other disorders. In addition, the confirmation of a perilymphatic fistula during surgical exploration is usually based upon the subjective observation of fluid pooling in niches of the middle ear. A sensitive and objective laboratory test for identifying perilymph in the middle ear would be a useful adjunct for the diagnosis and management of perilymphatic fistula. The objective of this paper is to demonstrate the potential utility of beta 2 (beta 2) transferrin assay in the diagnosis of perilymphatic fistula. To accomplish this objective, we confirmed that beta 2 transferrin is present in living human perilymph and is absent in the normal or inflamed middle ear. In addition, the utility of beta 2 transferrin assay in the diagnosis of cerebrospinal fluid otorrhea is presented. 相似文献
96.
97.
Proper timing of surgery for gallstone pancreatitis 总被引:23,自引:0,他引:23
98.
99.
Anita E. Kelly Matthew E. Coenen Benjamin L. Johnston 《Journal of traumatic stress》1995,8(1):161-169
One hundred six undergraduate (83 women and 23 men) completed surveys concerning their most traumatic life event, the feedback they received following their disclosure of the event to others, and how they felt after the disclosure. Results indicated that the better they felt after disclosure, the less disturbed they were by thoughts of the event at the time of the study. In addition, the more personal the trauma was, the worse they felt after their disclosure, and the more disturbed they were about the trauma. However, no significant relation existed between the positivity (e.g., supportiveness) of their confidant's feedback and their present degree of disturbance. Implications for understanding the complex relation between confiding traumatic events and resolving feelings surrounding those events were discussed. 相似文献
100.
M Fava J F Rosenbaum R Birnbaum K Kelly M W Otto R MacLaughlin 《Acta psychiatrica Scandinavica》1992,86(1):42-45
We evaluated the predictive value of the thyrotropin (TSH) response to thyrotropin-releasing hormone (TRH) in 32 depressed outpatients completing a double-blind placebo-controlled trial of s-adenosyl-l-methionine (SAMe), which failed to show any significant difference between SAMe and placebo. Treatment response was defined as the change in Hamilton Rating Scale for Depression (HRSD-24) score between baseline and the end of the six-week trial. Subjects with TSH response outside the normal range (7-25 uU/ml) had a significantly greater response than patients with a normal response. There was also a significant correlation between absolute deviations from the mean TSH response (16 uU/ml) and changes in HRSD-24 scores. 相似文献