全文获取类型
收费全文 | 5704篇 |
免费 | 520篇 |
国内免费 | 63篇 |
专业分类
耳鼻咽喉 | 17篇 |
儿科学 | 66篇 |
妇产科学 | 52篇 |
基础医学 | 245篇 |
口腔科学 | 104篇 |
临床医学 | 537篇 |
内科学 | 696篇 |
皮肤病学 | 67篇 |
神经病学 | 247篇 |
特种医学 | 100篇 |
外科学 | 519篇 |
综合类 | 1256篇 |
一般理论 | 2篇 |
预防医学 | 1528篇 |
眼科学 | 103篇 |
药学 | 433篇 |
24篇 | |
中国医学 | 231篇 |
肿瘤学 | 60篇 |
出版年
2024年 | 14篇 |
2023年 | 108篇 |
2022年 | 181篇 |
2021年 | 249篇 |
2020年 | 255篇 |
2019年 | 400篇 |
2018年 | 280篇 |
2017年 | 207篇 |
2016年 | 139篇 |
2015年 | 153篇 |
2014年 | 389篇 |
2013年 | 362篇 |
2012年 | 333篇 |
2011年 | 394篇 |
2010年 | 254篇 |
2009年 | 209篇 |
2008年 | 239篇 |
2007年 | 221篇 |
2006年 | 184篇 |
2005年 | 159篇 |
2004年 | 103篇 |
2003年 | 82篇 |
2002年 | 70篇 |
2001年 | 63篇 |
2000年 | 65篇 |
1999年 | 47篇 |
1998年 | 37篇 |
1997年 | 28篇 |
1996年 | 12篇 |
1995年 | 8篇 |
1994年 | 10篇 |
1993年 | 5篇 |
1992年 | 7篇 |
1991年 | 5篇 |
1990年 | 4篇 |
1988年 | 4篇 |
1987年 | 3篇 |
1985年 | 77篇 |
1984年 | 104篇 |
1983年 | 92篇 |
1982年 | 93篇 |
1981年 | 104篇 |
1980年 | 76篇 |
1979年 | 82篇 |
1978年 | 81篇 |
1977年 | 52篇 |
1976年 | 60篇 |
1975年 | 66篇 |
1974年 | 54篇 |
1973年 | 58篇 |
排序方式: 共有6287条查询结果,搜索用时 171 毫秒
21.
再论医院后勤服务社会化的可行性 总被引:4,自引:3,他引:1
周兆明 《中华医院管理杂志》1997,13(4):251-253
目前,经济高速发展,服务体系和水准相对滞后,加上管理者素质的提高,现代管理技术的应用,以及后勤管理体制的改革,为医院后勤工作向社会分离提供了条件,也为推进医院后勤服务社会化提供了机遇。但规范卫生服务市场体系是后勤服务社会化的保障,故要建立:卫生物质流通、后勤人才流动、经济信息市场及卫生建设筹资机构。在推进后勤服务社会化时尚需解决:①支持条件;②实施集团联盟;③注意经营定位等问题。 相似文献
22.
现代化医院呼唤现代服务模式 总被引:1,自引:0,他引:1
当前我们正在向建设基本现代化医院迈进,在注意硬件建设的同时,不要忽略软件建设。硬件建设需要大量投入,较易见成果;而后者无需大量财力投入,只需转变医院人的思想观念,就能使医院明显改观。 相似文献
23.
24.
关于研究生课程"生物医学工程前沿"建设的意见 总被引:1,自引:0,他引:1
朱翠玲 《中国医学物理学杂志》2004,21(2):120-121
"生物医学工程前沿"是国家所规定的生物医学工程专业研究生的课程之一.它以极广的知识领域,最新的学术动态,最先进的医疗技术等为主要内容,展示该专业的研究范围、前沿动态、发展趋向及未来前景,是学生们全面了解本专业的最好窗口,也是获取专业知识的最丰富园地. 相似文献
25.
26.
Psychological and neuropsychological aspects of COPD 总被引:2,自引:0,他引:2
A review of the literature dealing with the effects of chronic obstructive pulmonary disease (COPD) on psychological and neuropsychological functioning indicates that significant emotional and adaptive deficits characterize this patient population. Psychiatric consultation can provide valuable assistance to the primary care physician by reducing emotional distress and correcting dysfunctional attitudes and beliefs. Neuropsychological assessment can elucidate an individual's neurobehavioral resources and deficits. 相似文献
27.
The acute effects of the deposition of papain in the lungs of 4-month-old rabbits have been investigated with an amount not sufficient to cause emphysematous changes. During the first 2 days of in vivo deposition when hemorrhaging and inflammation occur, the total amounts of collagen and elastin in the lung, into which the papain had been instilled, did not change but the concentrations of collagen and elastin decreased 20 and 25% respectively. The rates of synthesis of collagen and other proteins doubled. By 4 weeks, collagen and elastin concentrations returned to, or were slightly above, control levels. The histological appearance and mean linear intercepts of lung sections and the compliance curves of excised lungs of the treated animals were similar to controls by 2 weeks after papain administration. The rabbit lung thus appears able to repair mild injury due to proteolytic enzymes. 相似文献
28.
Glomerular matrix proteins in nodular glomerulosclerosis in association with light chain deposition disease and diabetes mellitus 总被引:7,自引:0,他引:7
The diagnosis of light chain deposition nephropathy is based on the immunohistochemical demonstration of monoclonal light chain deposits within connective tissue matrix and on the presence at the ultrastructural level of electron-dense granular deposits along glomerular and tubular basement membranes. A nodular glomerulopathy characterized by amorphous periodic acid-Schiff-positive and argyrophilic widened mesangium and nodules is described in three patients with light chain deposition nephropathy. Light microscopic examination did not allow discrimination between the glomerular changes found in these specimens and the nodular glomerulosclerosis described in four patients with well-documented diabetes mellitus. Electron microscopic examination revealed microtubular fibrils 10 to 12 nm thick in mesangial areas in both groups. Such microfibrils could be glycoproteins. Immunofluorescence localization of matrix proteins, by staining with affinity-purified antibodies to types I, III, IV, and V (A, B) collagens, fibronectin, laminin, and heparan sulfate-containing proteoglycans, showed similar distributions in the two conditions. The mechanism of this abnormal accumulation of mesangial and glomerular basement membrane matrix proteins in two different conditions remains unknown. 相似文献
29.
W F Long R J Taylor C J Wagner D C Leavengood H S Nelson 《The Journal of allergy and clinical immunology》1985,76(1):113-117
The suppression of skin test reactivity by single doses of six antihistamines was measured before and after a period of daily antihistamine ingestion in 18 subjects. Single doses of hydroxyzine, 50 mg; chlorpheniramine, 16 mg; and promethazine, 50 mg; induced significant suppression of skin test reactivity at 2 hr, whereas the suppression produced by tripelennamine, 100 mg; diphenhydramine, 50 mg; and cyproheptadine, 16 mg; did not differ significantly from that produced by placebo. After 3 wk of treatment with hydroxyzine, 75 mg per day, the suppressive effect of hydroxyzine as well as the five clinically unrelated antihistamines was significantly reduced. Although the response to chlorpheniramine was also reduced after chronic treatment with chlorpheniramine, 24 mg per day, the difference was not statistically significant. We conclude that antihistamines in the doses used differ greatly in their suppressive effect on skin test reactivity. The antihistamine producing the most skin test suppression, hydroxyzine, when it was taken daily for 3 wk, caused the development of partial tolerance not only to its own effect but to those of clinically unrelated antihistamines. 相似文献
30.
Ecotropic and dualtropic mink cell focus-inducing murine leukemia viruses can induce a wide spectrum of H-2 controlled lymphoma types 总被引:5,自引:0,他引:5
Neonatal infection of C57BL and BALB/c mice by cloned ecotropic and dualtropic mink cell focus-inducing (MCF) murine leukemia viruses (MuLV) induces a wide spectrum of different lymphomas of T, B, and non-T/non-B cell types. Oncogenic dualtropic MCF viruses and poorly oncogenic ecotropic MuLV act synergistically in lymphomagenesis. Within one mouse strain virus-induced T-cell lymphomas arise earlier than B-cell lymphomas after neonatal inoculation of a single-cloned MuLV. The host genetic constitution, notably the H-2 complex has a marked influence on lymphoma type. This H-2 influence can be explained by an H-2-linked difference in penetration of the thymus early in life by oncogenic thymotropic MuLV, which in turn is correlated with, but not necessarily due to the magnitude of the anti-MuLV antibody response. 相似文献