全文获取类型
收费全文 | 1324篇 |
免费 | 111篇 |
国内免费 | 27篇 |
专业分类
耳鼻咽喉 | 21篇 |
儿科学 | 33篇 |
妇产科学 | 12篇 |
基础医学 | 142篇 |
口腔科学 | 23篇 |
临床医学 | 138篇 |
内科学 | 283篇 |
皮肤病学 | 6篇 |
神经病学 | 123篇 |
特种医学 | 123篇 |
外国民族医学 | 3篇 |
外科学 | 196篇 |
综合类 | 32篇 |
预防医学 | 129篇 |
眼科学 | 36篇 |
药学 | 105篇 |
中国医学 | 1篇 |
肿瘤学 | 56篇 |
出版年
2022年 | 18篇 |
2021年 | 38篇 |
2020年 | 11篇 |
2019年 | 23篇 |
2018年 | 36篇 |
2017年 | 28篇 |
2016年 | 21篇 |
2015年 | 31篇 |
2014年 | 27篇 |
2013年 | 39篇 |
2012年 | 47篇 |
2011年 | 77篇 |
2010年 | 36篇 |
2009年 | 36篇 |
2008年 | 47篇 |
2007年 | 60篇 |
2006年 | 70篇 |
2005年 | 48篇 |
2004年 | 34篇 |
2003年 | 39篇 |
2002年 | 28篇 |
2001年 | 24篇 |
2000年 | 29篇 |
1999年 | 24篇 |
1998年 | 27篇 |
1997年 | 15篇 |
1996年 | 25篇 |
1995年 | 25篇 |
1994年 | 25篇 |
1993年 | 13篇 |
1992年 | 24篇 |
1991年 | 21篇 |
1990年 | 30篇 |
1989年 | 36篇 |
1988年 | 28篇 |
1987年 | 25篇 |
1986年 | 24篇 |
1985年 | 29篇 |
1984年 | 16篇 |
1983年 | 14篇 |
1982年 | 12篇 |
1981年 | 9篇 |
1980年 | 11篇 |
1976年 | 12篇 |
1973年 | 16篇 |
1971年 | 18篇 |
1969年 | 8篇 |
1968年 | 9篇 |
1967年 | 11篇 |
1966年 | 8篇 |
排序方式: 共有1462条查询结果,搜索用时 0 毫秒
71.
72.
Mrs. Henrietta J. Duvall B.A. Mr. Ben Z. Locke M.S. Dr. Morton Kramer Sc.D. 《Community mental health journal》1966,2(3):237-243
The increase in psychoneurotic admissions to mental health facilities in the nation as well as the preponderance of such cases in existing community oriented facilities prompted the examination of the socioeconomic characteristics of such patients admitted to the mental health facilities in Ohio.Results showed higher admission rates for: (a) metropolitan residents than nonmetropolitan residents; (b) females than males; (c) whites than nonwhites; (d) females not employed than those of all occupational categories except laborers; (e) laborers followed by managerial and professional workers than any other occupational category; (f) married females than single females, the highest rates, for both sexes, occurring for the divorced and separated. Implications of these findings as they relate to the present community mental health approach are discussed. 相似文献
73.
74.
Wernicke's encephalopathy. Complication of gastric plication 总被引:1,自引:0,他引:1
75.
Delayed hepatic CT scanning: increased confidence and improved detection of hepatic metastases 总被引:1,自引:0,他引:1
Bernardino ME; Erwin BC; Steinberg HV; Baumgartner BR; Torres WE; Gedgaudas- McClees RK 《Radiology》1986,159(1):71-74
Fifty oncologic patients with suspected hepatic metastases were prospectively evaluated by dynamic sequential hepatic computed tomography (DSHCT) and by delayed iodine hepatic computed tomography (DICT) scanning. DICT scanning was performed 4-6 hours following administration of 60 g of intravenous iodine. Both techniques were evaluated for lesion definition relative to the adjacent hepatic parenchyma and for numbers of metastases detected. Metastases were detected by both techniques in 26 patients. Fifteen patients (58%) had lesions better defined by DICT. DICT scanning detected more metastases in seven of these 15 patients. In eight patients (31%), there was no difference between the two techniques in numbers of masses detected or lesion definition. In three cases (11%), metastases were more confidently identified on the initial or DSHCT scan. DICT scanning, as described, is useful in defining and detecting hepatic metastases, especially where there is questionable hepatic involvement or better quantification of size is necessary. 相似文献
76.
77.
78.
79.
Six-month prevalence of specific psychiatric disorders among Mexican Americans and non-Hispanic whites in Los Angeles 总被引:9,自引:0,他引:9
M A Burnam R L Hough J I Escobar M Karno D M Timbers C A Telles B Z Locke 《Archives of general psychiatry》1987,44(8):687-694
The current prevalence of DSM-III psychiatric disorders was assessed using the Diagnostic Interview Schedule (DIS) as part of a Los Angeles household population survey. The Los Angeles prevalence estimates were compared with sex- and age-adjusted estimates from four other US field sites, all of which were part of the Epidemiologic Catchment Area (ECA) program. Overall, few significant differences in household population rates were found between Los Angeles and the other ECA sites. Within the Los Angeles household sample, the current prevalence of disorder among Mexican Americans was compared with that among non-Hispanic whites. Non-Hispanic whites had higher rates of drug abuse/dependence than Mexican Americans; the rates among non-Hispanic whites in Los Angeles were also higher than those found at other ECA sites. Mexican Americans displayed higher rates of severe cognitive impairment, a finding that likely reflects ethnic and educational bias in the measurement of cognitive impairment. Another ethnic difference was found only for one specific age and sex group: Mexican-American women 40 years of age or older had strikingly high rates of phobia. 相似文献
80.
目的探讨医源性脾脏损伤脾切除对结直肠癌切除患者术后长期生存的影响。方法对1990年1月1日至1999年12月31日10年间行结直肠癌手术切除并附带脾切除患者进行病例配对回顾研究。分析患者年龄、性别、依据美国麻醉学医师协会(ASA)标准评估的身体状况、疾病分期、手术类型及预后等资料。配对病例来自同一医疗中心,性别、年龄、疾病分期及手术类型完全相同。手术附带脾切除患者为试验组,未切脾者为对照组。结果55例患者行医源性脾切除术,对照组在年龄、性别、身体状况、疾病分期及手术类型上与之匹配。随访时间(从手术开始到患者死亡或者最后一次随访1为2~205个月(中位随访时间为43个月)。Cox比例危险度模型进行Kaplan-Meier法生存分析发现两组间差异有显著性意义,不切除脾脏对患者生存有利(危险度1.8,95%可信区间为1-3.3,P=0.0399),未切脾组与切脾组5年生存率分别为70%和47%,10年生存率分别为55%和38%。结论结直肠癌患者在行结肠或直肠切除时,因医源性脾脏损伤而切除脾脏者,预后较差。 相似文献