全文获取类型
收费全文 | 1356742篇 |
免费 | 113878篇 |
国内免费 | 6395篇 |
专业分类
耳鼻咽喉 | 16910篇 |
儿科学 | 43650篇 |
妇产科学 | 37030篇 |
基础医学 | 186075篇 |
口腔科学 | 36778篇 |
临床医学 | 123014篇 |
内科学 | 281553篇 |
皮肤病学 | 32139篇 |
神经病学 | 112273篇 |
特种医学 | 56116篇 |
外国民族医学 | 274篇 |
外科学 | 212970篇 |
综合类 | 31910篇 |
现状与发展 | 2篇 |
一般理论 | 425篇 |
预防医学 | 108554篇 |
眼科学 | 28585篇 |
药学 | 94655篇 |
5篇 | |
中国医学 | 2231篇 |
肿瘤学 | 71866篇 |
出版年
2018年 | 13754篇 |
2017年 | 10893篇 |
2016年 | 13028篇 |
2015年 | 14623篇 |
2014年 | 20401篇 |
2013年 | 30424篇 |
2012年 | 37203篇 |
2011年 | 39919篇 |
2010年 | 25005篇 |
2009年 | 24416篇 |
2008年 | 37291篇 |
2007年 | 39793篇 |
2006年 | 40850篇 |
2005年 | 39500篇 |
2004年 | 37674篇 |
2003年 | 36696篇 |
2002年 | 34655篇 |
2001年 | 66431篇 |
2000年 | 68274篇 |
1999年 | 56905篇 |
1998年 | 16956篇 |
1997年 | 15168篇 |
1996年 | 16171篇 |
1995年 | 16369篇 |
1994年 | 15246篇 |
1993年 | 14272篇 |
1992年 | 47355篇 |
1991年 | 45979篇 |
1990年 | 44190篇 |
1989年 | 42016篇 |
1988年 | 38971篇 |
1987年 | 38282篇 |
1986年 | 36062篇 |
1985年 | 34852篇 |
1984年 | 26534篇 |
1983年 | 22288篇 |
1982年 | 13993篇 |
1981年 | 12593篇 |
1980年 | 11857篇 |
1979年 | 23740篇 |
1978年 | 17215篇 |
1977年 | 14501篇 |
1976年 | 13298篇 |
1975年 | 13831篇 |
1974年 | 16222篇 |
1973年 | 15541篇 |
1972年 | 14285篇 |
1971年 | 13144篇 |
1970年 | 11962篇 |
1969年 | 11187篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
991.
992.
The subacute sclerosing panencephalitis is one of the few child dementiae. An eight cases study is the opportunity of analysing the clinical, electrical and evolutive particularities of this very serious prognosis disease. The circumstantial comment of a thirteen-year-followed-case illustrates the clinical features, the electrical evolution, and the late C.T. scan aspects. 相似文献
993.
J H Rush J D Vidovich M A Johnson 《The Journal of bone and joint surgery. British volume》1987,69(3):400-402
Arterial complications occurring in association with knee replacement surgery are rare, even though most patients having this operation are elderly and therefore more likely to have peripheral vascular disease. We report a patient who developed an arterial complication during the course of a knee replacement operation, as well as the results of a survey of Fellows of the Australian Orthopaedic Association. Recommendations to minimise this serious complication are proposed. 相似文献
994.
Under analysis are results of the surgical treatment of 300 patients with perforating pyloroduodenal ulcers. The correct selection of patients for the operation gives best nearest and especially long-term results of vagotomy with antrum resection. The amount of recurrences after a simple suturing of the ulcer in 164 patients was 50%, while after vagotomy with/without various draining operations it was 3.7%. Postoperative lethality after vagotomy was not great, long-term results being considerably better than after the operations of simple suturing the ulcer. 相似文献
995.
996.
Torsion of noncircular beams results in warping of each cross section. When noncircular cross sections are constrained to remain plane, the resulting shear stress distribution is different from what Saint Venant torsion (with warping) would predict. This has practical implications to the stress analysis of plated long bones subjected to torsional loadings. Analyses in which warping is not allowed predict incorrect stress fields in the plate and bone and overpredict the amount of stress shielding associated with fracture plate fixation. 相似文献
997.
Diabetes mellitus has deleterious effects on the immune system which may lead to infection that is more serious and difficult to treat. Fifteen diabetic patients with acute bacterial sinusitis are reviewed. Diabetic pathophysiology and its relationship to infection are discussed. A protocol for treatment is outlined, with emphasis on the importance of intravenous antibiotics. 相似文献
998.
Psychiatric morbidity in Hobart's dependent aged 总被引:1,自引:0,他引:1
D W Kay T A Holding B Jones S Littler 《The Australian and New Zealand journal of psychiatry》1987,21(4):463-475
Psychiatric morbidity in the dependent aged was studied in the elderly population of Hobart's nursing homes and long-stay hospitals. Only patients with home addresses in Hobart and who were admitted for the first time aged 70 years or over were included. Three hundred and twelve persons were interviewed with a standard interview, and an informant was interviewed when appropriate. The medical records were searched for diagnoses and drug treatments. Physical disability was rated on an ad hoc scale. Comparisons were made of the prevalence of dementia, depression and anxiety in different types of unit, and between these and two domiciliary samples, one of which received domiciliary nursing services (n = 100) and the other not (n = 100). The differential use of institutions by men and women, and a possible sex difference in the prevalence of dementia is discussed. 相似文献
999.
D Greenberg 《American journal of psychotherapy》1987,41(3):409-416
Four cases of compulsive hoarding are described, all sharing the following characteristics: (1) onset in the twenties, (2) preoccupation with hoarding to the exclusion of work and family, (3) diminished insight, (4) little interest in receiving treatment, (5) no attempt to curb their compulsion. They do not show clear psychotic features. The implications of these characteristics for the diagnosis of hoarding are discussed. 相似文献
1000.