全文获取类型
收费全文 | 77479篇 |
免费 | 4428篇 |
国内免费 | 1076篇 |
专业分类
耳鼻咽喉 | 457篇 |
儿科学 | 3183篇 |
妇产科学 | 1430篇 |
基础医学 | 8895篇 |
口腔科学 | 1957篇 |
临床医学 | 5891篇 |
内科学 | 14873篇 |
皮肤病学 | 498篇 |
神经病学 | 7821篇 |
特种医学 | 1296篇 |
外国民族医学 | 1篇 |
外科学 | 7743篇 |
综合类 | 6005篇 |
现状与发展 | 5篇 |
一般理论 | 7篇 |
预防医学 | 9735篇 |
眼科学 | 845篇 |
药学 | 7282篇 |
50篇 | |
中国医学 | 3109篇 |
肿瘤学 | 1900篇 |
出版年
2023年 | 1264篇 |
2022年 | 2017篇 |
2021年 | 3018篇 |
2020年 | 2584篇 |
2019年 | 4430篇 |
2018年 | 3575篇 |
2017年 | 2948篇 |
2016年 | 2060篇 |
2015年 | 1899篇 |
2014年 | 3441篇 |
2013年 | 4115篇 |
2012年 | 3108篇 |
2011年 | 3433篇 |
2010年 | 2783篇 |
2009年 | 2648篇 |
2008年 | 2679篇 |
2007年 | 2549篇 |
2006年 | 2071篇 |
2005年 | 1773篇 |
2004年 | 1517篇 |
2003年 | 1297篇 |
2002年 | 1057篇 |
2001年 | 862篇 |
2000年 | 774篇 |
1999年 | 687篇 |
1998年 | 661篇 |
1997年 | 584篇 |
1996年 | 537篇 |
1995年 | 506篇 |
1994年 | 460篇 |
1993年 | 385篇 |
1992年 | 373篇 |
1991年 | 302篇 |
1990年 | 291篇 |
1989年 | 241篇 |
1988年 | 205篇 |
1986年 | 225篇 |
1985年 | 1652篇 |
1984年 | 2668篇 |
1983年 | 2422篇 |
1982年 | 1818篇 |
1981年 | 1938篇 |
1980年 | 1618篇 |
1979年 | 1384篇 |
1978年 | 1206篇 |
1977年 | 688篇 |
1976年 | 1145篇 |
1975年 | 990篇 |
1974年 | 825篇 |
1973年 | 792篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
61.
62.
目的探讨嵌顿痔不同治疗方法的疗效。方法回顾性分析2009年8月至2012年8月迁西县人民医院确诊为嵌顿痔的160例患者的临床资料,其中采取外剥内扎法的80例患者作为A组,吻合器痔上黏膜环切术(PPH)结合外痔血栓剥除术的80例患者作为B组。对比分析两组患者的手术时间、住院时间、住院费用等指标及临床疗效,对比分析两组术后6个月并发症发生情况。结果B组患者的手术时间、住院时间显著少于A组[(15.4±1.1)min比(38.7±0.5)min,(5.3±0.6)d比(12.4±1.3)d,P<0.01];B组患者的有效率显著高于A组(88.8%比66.3%),而总体并发症发生率及复发率显著低于A组(17.5%比33.8%,5%比18.8%,P<0.05)。结论 PPH结合外痔血栓剥除术临床疗效显著。 相似文献
63.
64.
65.
Shi Li 《Early child development and care》2016,186(3):466-479
Most scholars consider gratitude as a moral emotion, with only few seeing it as a character trait. As a result, no systematic mechanism has ever been attempted to develop gratitude in children. Given the social issue of widespread lack of gratitude in the one-child generations of China, this article attempts to outline a mechanism of parental moral education for gratitude development. The mechanism is underpinned by love, induction and discipline; and theoretically justified in accordance with key psychological and sociological theories, such as Piaget's theory of moral development, Kohlberg's moral stages theory, attachment theory, Hoffman's internalisation theory, Rest's social justice theory and Baumrind's parenting styles theory. The benefits and potential risks of each strategy of the mechanism are addressed. 相似文献
66.
Michelle Linda Ferderbar Thomas E. Doyle Reza Samavi David Koff 《Journal l'Association canadienne des radiologistes》2019,70(2):119-124
Several regulatory bodies have agreed that low-dose radiation used in medical imaging is a weak carcinogen that follows a linear, non-threshold model of cancer risk. While avoiding radiation is the best course of action to mitigate risk, computed tomography (CT) scans are often critical for diagnosis. In addition to the as low as reasonably achievable principle, a more concrete method of dose reduction for common CT imaging exams is the use of a diagnostic reference level (DRL). This paper examines Canada's national DRL values from the recent CT survey and compares it to published provincial DRLs as well as the DRLs in the United Kingdom and the United States of America for the 3 most common CT exams: head, chest, and abdomen/pelvis. Canada compares well on the international scale, but it should consider using more electronic dose monitoring solutions to create a culture of dose optimization. 相似文献
67.
68.
正确编制“本年盈余与预算结余差异调节表”是公立医院执行《政府会计制度》的一大难点,现有的几种差异调节方法存在诸多不足,核算正确与否依赖会计人员的基本素质,而且工作量巨大。以财务会计与预算会计差异产生的基本原理为基础,利用计算机软件实时校验并自动登记差异,是简便、高效、准确编制“本年盈余与预算结余差异调节表”的方法,本文对此进行了举例说明。 相似文献
69.
《Journal of pain and symptom management》2020,59(4):794-807.e4
ContextPalliative care is gaining ground globally and is endorsed in high-level policy commitments, but service provision, supporting policies, education, and funding are incommensurate with rapidly growing needs.ObjectivesThe objective of this study was to describe current levels of global palliative care development and report on changes since 2006.MethodsAn online survey of experts in 198 countries generated 2017 data on 10 indicators of palliative care provision, fitted to six categories of development. Factor analysis and discriminant analysis showed the validity of the categorization. Spearman correlation analyses assessed the relationship with World Bank Income Level (WBIL), Human Development Index (HDI), and Universal Health Coverage (UHC).ResultsNumbers (percentages) of countries in each development category were as follows: 1) no known palliative care activity, 47 (24%); 2) capacity-building, 13 (7%); 3a) isolated provision, 65 (33%); 3b) generalized provision, 22 (11%); 4a) preliminary integration into mainstream provision, 21 (11%); 4b) advanced integration, 30 (15%). Development levels were significantly associated with WBIL (rS = 0.4785), UHC (rS = 0.5558), and HDI (rS = 0.5426) with P < 0.001. Net improvement between 2006 and 2017 saw 32 fewer countries in Categories 1/2, 16 more countries in 3a/3b, and 17 more countries in 4a/4b.ConclusionPalliative care at the highest level of provision is available for only 14% of the global population and is concentrated in European countries. An 87% global increase in serious health-related suffering amenable to palliative care interventions is predicted by 2060. With an increasing need, palliative care is not reaching the levels required by at least half of the global population. 相似文献
70.
Mariko Morimoto 《Health marketing quarterly》2020,37(2):108-123
AbstractThis research explores how the level of consumers’ need for cognition (NFC) is associated with celebrity endorser credibility and examines its effects on advertising-related attitudes. A 3 (endorser types: actor/actress, athlete, TV personality/talent) × 2 (endorser’s gender) factorial experiment with 435 Japanese consumers was conducted. Concerning Japanese OTC drug advertising, lower NFC individuals perceived celebrity endorsers as more credible in comparison to higher NFC individuals. The main effects of NFC and endorser type on endorser credibility existed; however, no interaction between the two variables was found. The endorser type had an influence on attitudes toward ads and the advertised brand. 相似文献