全文获取类型
收费全文 | 357120篇 |
免费 | 23429篇 |
国内免费 | 7861篇 |
专业分类
耳鼻咽喉 | 4140篇 |
儿科学 | 9634篇 |
妇产科学 | 6738篇 |
基础医学 | 29221篇 |
口腔科学 | 9957篇 |
临床医学 | 39127篇 |
内科学 | 43033篇 |
皮肤病学 | 4596篇 |
神经病学 | 19530篇 |
特种医学 | 9596篇 |
外国民族医学 | 31篇 |
外科学 | 44267篇 |
综合类 | 52741篇 |
现状与发展 | 13篇 |
一般理论 | 29篇 |
预防医学 | 34878篇 |
眼科学 | 5280篇 |
药学 | 30513篇 |
392篇 | |
中国医学 | 31107篇 |
肿瘤学 | 13587篇 |
出版年
2023年 | 5749篇 |
2022年 | 9961篇 |
2021年 | 14238篇 |
2020年 | 13222篇 |
2019年 | 18854篇 |
2018年 | 16622篇 |
2017年 | 13452篇 |
2016年 | 10814篇 |
2015年 | 10121篇 |
2014年 | 21125篇 |
2013年 | 22578篇 |
2012年 | 19046篇 |
2011年 | 20654篇 |
2010年 | 16625篇 |
2009年 | 15283篇 |
2008年 | 14853篇 |
2007年 | 15318篇 |
2006年 | 13438篇 |
2005年 | 11596篇 |
2004年 | 9574篇 |
2003年 | 8316篇 |
2002年 | 6540篇 |
2001年 | 5877篇 |
2000年 | 4851篇 |
1999年 | 4245篇 |
1998年 | 3438篇 |
1997年 | 3287篇 |
1996年 | 2794篇 |
1995年 | 2693篇 |
1994年 | 2562篇 |
1993年 | 2067篇 |
1992年 | 2088篇 |
1991年 | 1784篇 |
1990年 | 1579篇 |
1989年 | 1417篇 |
1988年 | 1348篇 |
1987年 | 1167篇 |
1985年 | 3812篇 |
1984年 | 4831篇 |
1983年 | 3378篇 |
1982年 | 3838篇 |
1981年 | 3574篇 |
1980年 | 3171篇 |
1979年 | 2922篇 |
1978年 | 2550篇 |
1977年 | 1919篇 |
1976年 | 2165篇 |
1975年 | 1641篇 |
1974年 | 1432篇 |
1973年 | 1280篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
991.
肘关节后脱位并尺骨冠状突骨折9例临床疗效分析 总被引:6,自引:0,他引:6
目的 探讨肘关节后脱位并尺骨冠状突骨折的治疗方法。方法 总结2000年3月~2003年5月9例肘关节后脱位合并尺骨冠状突骨折患者的治疗经验,根据骨折类型分别采用内外侧入路对8例患者进行手术治疗,术后配合早期功能锻炼。结果 所有患者随访8~24个月,根据HSS评分标准,优5例(55.6%),良2例(22.2%),一般2例(22.2%),优良率77.8%,无严重肘关节并发症发生。结论 选择恰当的手术入路和早期功能锻炼是提高该类骨折效果的关键。 相似文献
992.
993.
994.
C. Dahlf 《Clinical cardiology》1991,14(2):97-103
Quality of life is often considered to equate how the medical treatment is subjectively perceived by the patient, but ought to include the total impact of the disease/treatment on the patient's emotional, physical, and social well-being. Recently, a proposal for a generally applicable definition of quality of life in health care was put forward. This definition includes general well-being, health, and welfare (external factors), as three fundamental components, and the definition is based on both objective and subjective judgments. General well-being is exclusively and expression of the individual's subjective experience and is based on his or her own qualitative evaluation of well-being in relation to condition, treatments, and experiences. Health is according to the proposed definition, judged both objectively (signs) and subjectively (symptoms). Apart from health and well-being, there is also reason to include objectively registrable factors at the welfare level (external factors) such as the consumption of medicines, number of days in hospital, length of sick leave, need of in-home care, etc. This review is an attempt to elucidate the effects of antihypertensive pharmacotherapy on the patient's general well-being. The topic will be discussed from several points of views (e.g., aims of antihypertensive treatment, occurrence of symptoms in the population, compliance with prescribed treatment, symptom inventories, the concept of quality of life. 相似文献
995.
Internal rates of return were used to examine the status of pharmacist supply in the United States between the years 1987-1991. Age-earnings profiles were estimated for pharmacists, college graduates and high school graduates. Rates of return to pharmacists and college graduates were compared and a ratio of the pharmacist rate to the college graduate rate was computed for each year. Results suggest a shortage of pharmacists in the United States. Enrollments in pharmacy schools and adopted changes in the training of pharmacists are discussed in relation to their effects on the pharmacist labour market. 相似文献
996.
Predictors, costs and characteristics of out of area placement for people with intellectual disability and challenging behaviour 总被引:1,自引:0,他引:1
D. G. Allen K. Lowe K. Moore & S. Brophy 《Journal of intellectual disability research : JIDR》2007,51(6):409-416
Background Out of area placements for people with challenging behaviour represent an expensive and often ineffective strategy for meeting the needs of this service user group. Methods More than 800 agencies and service settings in a large area of South Wales were screened to identify children and adults with challenging behaviour against a number of defined operational criteria. Detailed data on identified individuals and the services they received were collected by interviewing key informants. Univariate and multivariate statistics were employed to identify predictors of out of area placement. Results In total, 1458 people were identified. Full data were available for 901 participants, 97 of whom were placed out of area. Predictors of out of area placement included behaviours resulting in physical injury and exclusion from service settings, a history of formal detention under the mental health act, the presence of mental health problems, a diagnosis of autism and higher total score on the Adaptive Behaviour Scale. Out of area placements were typically of high cost, and associated with only limited evidence of improved service quality. Conclusions Identifying predictors for out of area placement can be used to highlight deficiencies in local services and individuals at increased risk of exclusion from local services. 相似文献
997.
998.
Foley尿管气囊压迫治疗骶前静脉丛大出血的评价(附6例报告) 总被引:5,自引:0,他引:5
目的:评价直肠癌根治术中用Foley尿管气囊压迫治疗骶前静脉丛大出血(MPVP)的临床价值。方法:分析1995~2005年用Foley尿管气囊压迫治疗骶前静脉丛大出血6例的临床资料。结果:6例骶前大出血中全部用Foley尿管气囊压迫控制出血,术中出血量为800~1700mL,Foley尿管于术后4d拔除3例,5d1例,6d2例,均无再出血,会阴切口均一期愈合。结论:Foley尿管气囊压迫治疗骶前静脉丛大出血是一种简单安全有效的治疗方法。 相似文献
999.
微创固定系统治疗膝关节周围复杂骨折 总被引:27,自引:0,他引:27
目的应用微创固定系统(less invasive stabilizing system,LISS)治疗膝关节周围复杂骨折,探讨其手术适应证及疗效。方法2003年12月至2004年6月应用LISS技术治疗膝关节周围复杂骨折41例,男29例,女12例;年龄24 ̄67岁,平均40.6岁。胫骨近端骨折28例,股骨远端骨折13例。多发伤22例(53.7%),陈旧性骨折6例(14.6%),翻修手术1例。新鲜骨折均采用关节面切开复位、干骺端闭合复位及经皮钢板固定技术;陈旧性骨折及翻修手术采用有限切开及经皮钢板固定技术。结果单侧LISS手术时间平均87.2min。全部病例随访13~21个月,平均16个月。3例股骨远端骨缺损患者平均于术后21.3周(19~24周)行植骨术,植骨术后22.3周(18~24周)骨折愈合。其余患者愈合时间平均15.1周(11~23周),完全负重时间平均16.8周(12~25周)。术中发生螺钉脱落1例,提拉复位装置断裂1例,工具断裂1例,螺钉未能按计划置入2例。术后发生关节面复位丢失1例,无感染、内固定松动、断裂及失败病例。按照Rasmussen骨折复位评分标准,优31例、良10例。术后1年关节活动范围2.4°~95.6°。术后1年HSS评分平均88.4分(58~98分),其中优27例、良10例、中3例、差1例,优良率90.2%。结论LISS为膝关节周围复杂骨折提供了一种新的治疗方法,特别是对常规方法难以处理的骨折。但其手术理念及手术技术与传统手术不同,还需要一定病例与随访的积累才能确定其疗效。 相似文献
1000.
腕关节融合钢板内固定术的临床疗效 总被引:1,自引:0,他引:1
目的评价腕关节融合钢板内固定术的临床疗效。方法2000年7月-2004年12月,采用腕关节融合钢板内固定术治疗创伤性腕关节炎21例。随访内容包括腕关节疼痛程度、手指关节活动度、握力和x线片。根据Buck—Gramcko/Lohrnanrm评分表评价腕关节总体功能,DASH调查表评价腕关节融合术对患者日常活动及生活质量的影响。结果术后21例获得随访,平均随访时间为20个月。术后患侧腕部疼痛值平均为1.5(术前4.5),12例掌指关节和lO例拇指指间关节出现轻微背伸功能障碍,腕部握力为30kg(健侧为38kg)。x线片示腕关节全部骨性融合。Buck—Gramcko/Lohmanrm评分值为8.7,其中优5例、良10例,中6例。DASH值为32,DASH调查表结果表明腕关节融合术后部分日常活动受限。结论腕关节融合钢板内固定成功率高,腕关节疼痛明显减轻,但术后腕关节部分功能丧失。 相似文献