全文获取类型
收费全文 | 92204篇 |
免费 | 8684篇 |
国内免费 | 1939篇 |
专业分类
耳鼻咽喉 | 825篇 |
儿科学 | 1482篇 |
妇产科学 | 1655篇 |
基础医学 | 3505篇 |
口腔科学 | 1959篇 |
临床医学 | 19223篇 |
内科学 | 8542篇 |
皮肤病学 | 908篇 |
神经病学 | 3125篇 |
特种医学 | 1787篇 |
外国民族医学 | 5篇 |
外科学 | 8497篇 |
综合类 | 13180篇 |
现状与发展 | 4篇 |
一般理论 | 6篇 |
预防医学 | 20187篇 |
眼科学 | 967篇 |
药学 | 7942篇 |
310篇 | |
中国医学 | 5055篇 |
肿瘤学 | 3663篇 |
出版年
2024年 | 457篇 |
2023年 | 2296篇 |
2022年 | 3765篇 |
2021年 | 5077篇 |
2020年 | 5575篇 |
2019年 | 4127篇 |
2018年 | 3788篇 |
2017年 | 4084篇 |
2016年 | 4042篇 |
2015年 | 3933篇 |
2014年 | 7739篇 |
2013年 | 7647篇 |
2012年 | 6485篇 |
2011年 | 6444篇 |
2010年 | 5111篇 |
2009年 | 4599篇 |
2008年 | 4625篇 |
2007年 | 4193篇 |
2006年 | 3806篇 |
2005年 | 2980篇 |
2004年 | 2470篇 |
2003年 | 1957篇 |
2002年 | 1490篇 |
2001年 | 1164篇 |
2000年 | 915篇 |
1999年 | 719篇 |
1998年 | 602篇 |
1997年 | 504篇 |
1996年 | 405篇 |
1995年 | 348篇 |
1994年 | 269篇 |
1993年 | 249篇 |
1992年 | 200篇 |
1991年 | 142篇 |
1990年 | 94篇 |
1989年 | 87篇 |
1988年 | 65篇 |
1987年 | 62篇 |
1986年 | 39篇 |
1985年 | 65篇 |
1984年 | 53篇 |
1983年 | 36篇 |
1982年 | 30篇 |
1981年 | 33篇 |
1980年 | 21篇 |
1979年 | 11篇 |
1978年 | 10篇 |
1977年 | 4篇 |
1976年 | 3篇 |
1973年 | 2篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
21.
22.
目的 探讨PDCA 循环在消化道肿瘤伴糖尿病患者营养全程管理中的效果观察。方法 运用PDCA循环对80例不同程度营养不良的消化道肿瘤伴糖尿病患者实施营养全程管理,比较干预前后患者的体重、BMI指数、糖化血红蛋白、血红蛋白、总蛋白、白蛋白及球蛋白水平。结果 患者血红蛋白、总蛋白、白蛋白及球蛋白水平均有提高,比较差异均有统计学意义(P<0.05)。结论 PDCA循环管理在消化道肿瘤伴糖尿病患者营养全程管理中有较大的优势, 值得推广。 相似文献
23.
目的:探讨TomoTherapy QualityAssurance(TQA)数据趋势与螺旋断层放疗(Helical Tomotherapy,HT)系统输出的
联系。方法:回顾性分析了本院HT系统近3年内TQA各个模块的参数和数据趋势,探讨其与HT系统的静态输出剂量和
输出能量(D20/D10)变化的相关性。结果:楔形阶梯静态模块的z轴偏移参数与HT的静态输出剂量的相关性最强(r=0.883,
P<0.01)。基本剂量测定模块的出口检测器平整度值对能量变化最敏感(r=0.902),其次是楔形阶梯静态模块的能量差异
(r=0.897)和楔形阶梯螺旋模块的能量差异(r=0.852),灵敏度分别为2.3×10-4、3.1×10-4和5.7×10-4。结论:TQA有助于用户
追踪HT输出剂量和能量变化,及早进行必要的机器维护或剂量校准。 相似文献
24.
Eric S. Zhou Larissa Nekhlyudov Sharon L. Bober 《Translational andrology and urology》2015,4(2):218-231
There is a large and growing population of long-term cancer survivors. Primary care physicians (PCPs) are playing an increasingly greater role in the care of these patients across the continuum of cancer survivorship. In this role, PCPs are faced with the responsibility of managing a range of medical and psychosocial late effects of cancer treatment. In particular, the sexual side effects of treatment which are common and have significant impact on quality of life for the cancer survivor, often go unaddressed. This is an area of clinical care and research that has received increasing attention, highlighted by the presentation of this special issue on Cancer and Sexual Health. The aims of this review are 3-fold. First, we seek to overview common presentations of sexual dysfunction related to major cancer diagnoses in order to give the PCP a sense of the medical issues that the survivor may present with. Barriers to communication about sexual health issues between patient/PCPs in order are also described in order to emphasize the importance of PCPs initiating this important conversation. Next, we provide strategies and resources to help guide the PCP in the management of sexual dysfunction in cancer survivors. Finally, we discuss case examples of survivorship sexual health issues and highlight the role that a PCP can play in each of these case examples. 相似文献
25.
M. Simons R. Kimble S. McPhail Z. Tyack 《Burns : journal of the International Society for Burn Injuries》2019,45(8):1792-1809
BackgroundThe measurement of health-related quality of life (HRQoL) provides information about the perceived burden of the health condition and treatments from a lived experience. The Brisbane Burn Scar Impact Profile (caregiver report for young children, BBSIP0–8), developed in 2013, is a proxy-report measure of burn scar-specific HRQoL. The aim of this study was to report its psychometric properties in line with an evaluative purpose.MethodsCaregivers of children up to 8 years of age at risk of burn scarring were recruited into a prospective, longitudinal cohort study. Caregivers completed the BBSIP0–8, Pediatric Quality of Life Inventory and Patient Observer Scar Assessment Scale at baseline (approximately ≥85% of the total body surface area re-epithelialised), 1–2 weeks after baseline and 1-month after baseline. Psychometric properties measured included internal consistency, test–retest reliability, validity and responsiveness.ResultsEighty-six caregivers of mostly male children (55%), of a median age (IQR) of 1 year, 10 months (2 years, 1 month) and total body surface area burn of 1.5% (3.0%) were recruited. Over one third of participants were grafted and 15% had contractures or skin tightness at baseline. Internal consistency of ten item groups ranged from 0.73 to 0.96. Hypothesised correlations of changes in the BBSIP0–8 items with changes in criterion measures supported longitudinal validity (ρ ranging from ?0.73 to 0.68). The majority of item groups had acceptable reproducibility (ICC = 0.65–0.83). The responsiveness of five item groups was supported (AUC = 0.71–0.90).ConclusionThe psychometric properties tested support the use of the BBSIP0–8 as an evaluative measure of burn scar-related health-related quality of life for children aged below eight years in the early post-acute period of rehabilitation. Further investigation at longer time period after burn injury is indicated. 相似文献
26.
27.
Stavros Bekas 《Teaching and learning in medicine》2015,27(1):4-11
Phenomenon: The central role of clinical leadership in achieving the vision of quality and productivity could be attained by investing in its development in postgraduate medical education. Approach: A critical review of selected literature is presented. Findings: The author identifies some of the main theoretical constructs related to leadership; the pedagogical underpinning of medical leadership programs; their learning objectives; and the mixture of methods, individual and collective, to achieve them. Insights: How to best develop leadership through medical education remains an open debate. Experiential learning, reflective practice, action learning, and mentoring could provide the foundations of leadership development. Application of the aforementioned should be cautious due to limitations of the concept of leadership as currently promoted and lack of robust evaluation methodologies. 相似文献
28.
ObjectivesTo fill an empirical gap in the literature by examining changes in quality of care measures occurring when multispecialty clinic systems were acquired by hospital-owned, vertically integrated health care delivery systems in the Twin Cities area.ConclusionsMoving a clinic system into a vertically integrated delivery system resulted in limited increases in quality of care indicators. Caution is warranted when the acquisition causes disruption in referral patterns. 相似文献
29.
30.