全文获取类型
收费全文 | 9841篇 |
免费 | 2605篇 |
国内免费 | 128篇 |
专业分类
耳鼻咽喉 | 370篇 |
儿科学 | 193篇 |
妇产科学 | 265篇 |
基础医学 | 345篇 |
口腔科学 | 162篇 |
临床医学 | 3082篇 |
内科学 | 1906篇 |
皮肤病学 | 329篇 |
神经病学 | 779篇 |
特种医学 | 350篇 |
外科学 | 1352篇 |
综合类 | 371篇 |
现状与发展 | 2篇 |
预防医学 | 1769篇 |
眼科学 | 146篇 |
药学 | 217篇 |
1篇 | |
中国医学 | 100篇 |
肿瘤学 | 835篇 |
出版年
2024年 | 80篇 |
2023年 | 421篇 |
2022年 | 125篇 |
2021年 | 266篇 |
2020年 | 492篇 |
2019年 | 170篇 |
2018年 | 567篇 |
2017年 | 605篇 |
2016年 | 629篇 |
2015年 | 726篇 |
2014年 | 729篇 |
2013年 | 1057篇 |
2012年 | 422篇 |
2011年 | 371篇 |
2010年 | 543篇 |
2009年 | 636篇 |
2008年 | 338篇 |
2007年 | 276篇 |
2006年 | 312篇 |
2005年 | 222篇 |
2004年 | 172篇 |
2003年 | 150篇 |
2002年 | 120篇 |
2001年 | 215篇 |
2000年 | 137篇 |
1999年 | 175篇 |
1998年 | 278篇 |
1997年 | 300篇 |
1996年 | 316篇 |
1995年 | 249篇 |
1994年 | 187篇 |
1993年 | 128篇 |
1992年 | 130篇 |
1991年 | 103篇 |
1990年 | 103篇 |
1989年 | 114篇 |
1988年 | 94篇 |
1987年 | 70篇 |
1986年 | 63篇 |
1985年 | 70篇 |
1984年 | 64篇 |
1983年 | 55篇 |
1982年 | 37篇 |
1981年 | 50篇 |
1980年 | 27篇 |
1979年 | 24篇 |
1978年 | 23篇 |
1977年 | 24篇 |
1976年 | 18篇 |
1975年 | 15篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
21.
22.
23.
Hartley Dean MA PhD Keir Gale BA Roger Woods BA MA 《Health & social care in the community》1996,4(6):338-346
The new complaints procedures which local authority social services departments have been required to introduce represent an important mechanism for managing the change of culture associated with recent community care reforms. They also represent a new genre in mechanisms of redress for welfare recipients. This paper reports the findings of a study which has observed considerable diversity in the ways in which local authorities are interpreting the nature and purposes of the new procedures and, in particular, the functions of review panels established under those procedures. Variations in the composition of panels, in the style of review panel proceedings, in perceptions of the panels' powers, and in the ways that complaints and complainants are constituted are all discussed. Attention is drawn to four competing interpretations of the review panels' role and to the need for these to be clarified and prioritised. 相似文献
24.
Assault-injured Adolescents Presenting to the Emergency Department: Causes and Circumstances 总被引:1,自引:0,他引:1
25.
Effects of Ethanol Exposure during the Third Trimester Equivalent on Neuron Number in Rat Hippocampus and Dentate Gyrus 总被引:5,自引:0,他引:5
James R. West PhD Kristin M. Hamre BA Martin D. Cassell PhD 《Alcoholism, clinical and experimental research》1986,10(2):190-197
An artificial rearing procedure was used to expose neonatal rats to a formula containing 3.74% ethanol during postnatal days 4 through 10. This treatment produced a mean blood ethanol concentration of 379.8 +/- 17.3 mg/dl. When the pups were killed on the afternoon of postnatal day 10, brain weight to body weight ratio in the ethanol-exposed rats was reduced 22.4% and 21.5% compared to suckle and pair-fed controls, respectively. Ethanol exposure also resulted in a 16% reduction of neurons in hippocampal field CA4, compared to controls, but did not produce deficits in fields CA1 or CA3. There was also a 10% increase in the number of neurons (a population of cells in the midst of a proliferative phase at the time of the exposure) in the granule cell layer of the dentate gyrus. The ethanol exposure did not affect cell size in any of the four neuron populations measured. These results suggest, that within the dose and timing parameters examined, ethanol exposure during the third trimester equivalent appears to be preferentially harmful to specific populations of developing neurons. 相似文献
26.
27.
28.
29.
Rufus S. HoweCPT AN BSE BSN RN-C Claudia ChrlstmanCPT AN MS BA BSN RN-C 《Journal of the American Academy of Nurse Practitioners》1991,3(1):35-41
Noninsulin dependent diabetes (type II diabetes) is a chronic disease characterized by hyperglycemia. Clients can generally be controlled by diet and exercise or a combination of diet, exercise, and oral hypoglycemic agents. When this therapy is not effective in controlling the hyperglycemia, the health care provider must choose to initiate insulin therapy. Outpatient initiation of insulin is an alternative to hospitalization in the type II diabetic client. Clinical guidelines for the initiation of insulin on an outpatient basis and management of the diabetic client are presented. 相似文献
30.
The current study evaluated psychosocial variables that may contribute to the experience of headache in college adults. One hundred ninety-nine participants, 103 women and 96 men, completed head pain logs for 4 weeks after completing measures assessing psychosocial variables. Multiple regression analyses indicated that level of emotional functioning, perception of stress, and gender were predictive of future headache frequency, intensity, and duration. Family history and health habits did not predict headache activity. These findings are consistent with research investigating psychosocial variables and headache activity. 相似文献