全文获取类型
收费全文 | 875篇 |
免费 | 41篇 |
国内免费 | 24篇 |
专业分类
耳鼻咽喉 | 1篇 |
儿科学 | 52篇 |
妇产科学 | 19篇 |
基础医学 | 70篇 |
口腔科学 | 20篇 |
临床医学 | 108篇 |
内科学 | 209篇 |
皮肤病学 | 42篇 |
神经病学 | 59篇 |
特种医学 | 105篇 |
外科学 | 33篇 |
综合类 | 71篇 |
预防医学 | 69篇 |
眼科学 | 22篇 |
药学 | 30篇 |
中国医学 | 1篇 |
肿瘤学 | 29篇 |
出版年
2022年 | 5篇 |
2017年 | 5篇 |
2016年 | 13篇 |
2015年 | 11篇 |
2014年 | 19篇 |
2013年 | 62篇 |
2012年 | 11篇 |
2011年 | 20篇 |
2010年 | 34篇 |
2009年 | 32篇 |
2008年 | 19篇 |
2007年 | 40篇 |
2006年 | 22篇 |
2005年 | 15篇 |
2004年 | 14篇 |
2003年 | 16篇 |
2002年 | 11篇 |
2001年 | 15篇 |
2000年 | 14篇 |
1999年 | 15篇 |
1998年 | 51篇 |
1997年 | 47篇 |
1996年 | 37篇 |
1995年 | 26篇 |
1994年 | 31篇 |
1993年 | 35篇 |
1992年 | 8篇 |
1991年 | 8篇 |
1990年 | 14篇 |
1989年 | 35篇 |
1988年 | 20篇 |
1987年 | 23篇 |
1986年 | 15篇 |
1985年 | 7篇 |
1984年 | 9篇 |
1983年 | 7篇 |
1982年 | 9篇 |
1981年 | 10篇 |
1980年 | 10篇 |
1977年 | 5篇 |
1976年 | 7篇 |
1975年 | 6篇 |
1969年 | 4篇 |
1966年 | 4篇 |
1965年 | 4篇 |
1963年 | 6篇 |
1962年 | 5篇 |
1960年 | 5篇 |
1955年 | 4篇 |
1941年 | 11篇 |
排序方式: 共有940条查询结果,搜索用时 734 毫秒
41.
清开灵与利巴韦林治疗小儿呼吸道合胞病毒肺炎的比较:单盲、随机、平行对照试验 总被引:1,自引:0,他引:1
目的:比较清开灵与利巴韦林对呼吸道合胞病毒肺炎患儿治疗效果的差异。方法:选择2005-02/2006-04在北京儿童医院分中心治疗的小儿呼吸道合胞病毒肺炎97例,患儿法定监护人知情同意。采用单盲、随机、平行对照试验的原则,按区组随机化方法分为2组,清开灵注射液组49例,利巴韦林组48例。①清开灵注射液组:清开灵注射液静脉滴注加口服中成药。②利巴韦林组:利巴韦林注射液静脉滴注加口服复方愈创木酚磺酸钾口服液。两组疗程均为10d,比较两组患儿的疗效。结果:清开灵注射液组脱落3例,利巴韦林组脱落1例,进入结果分析清开灵注射液组46例,利巴韦林组47例。①清开灵注射液组发热患儿体温恢复正常时间比利巴韦林组短[(2.72±1.86)d,(6.29±2.41)d(P<0.01)]。②清开灵注射液组患儿咳嗽、痰壅、气促症状积分改善方面优于利巴韦林组(P<0.05~0.01)。③清开灵注射液组的呼吸道合胞病毒转阴时间明显优于利巴韦林组。④咳嗽、痰壅、病毒转阴时间、气促均进入Logistic模型,其中前两个症状的回归系数绝对值较大。结论:清开灵注射液治疗小儿呼吸道合胞病毒肺炎在退热、止咳平喘、呼吸道合胞病毒转阴时间等方面均具有明显优势,咳嗽、痰壅这两个症状更能反映清开灵注射液的疗效优于利巴韦林。 相似文献
42.
BAROREFLEX MECHANISMS IN HYPERTENSION 总被引:2,自引:0,他引:2
43.
Tsering P. Lama Katie Moore Sheila Isanaka Leslie Jones Juliet Bedford Saskia de Pee Joanne Katz Subarna K. Khatry Steven C. LeClerq James M. Tielsch 《Maternal & child nutrition》2022,18(2)
Some evidence suggests that balanced energy protein (BEP) supplements taken during pregnancy and lactation can have positive effects on birth outcomes such as small‐for‐gestational age and birthweight, but more evidence is needed on the long‐term use and acceptability of such supplements. We conducted a mixed‐methods formative research study to assess and compare compliance with and acceptability of two BEP supplements, a lipid‐based peanut paste and a biscuit, to identify BEP supplements for subsequent inclusion in an efficacy trial. We conducted an 8‐week feeding trial of daily supplementation among two groups of 40 pregnant women each in rural Nepal. Compliance data were collected and supplements distributed at the weekly visits. Sensory properties of the supplements were assessed using a 7‐point Likert scale. In addition, in‐depth interviews with women (n = 16), family members (n = 6) and health workers (n = 6) and focus group discussions (FGDs) (n = 4) were conducted to explore themes related to general use and intention of future use of the supplement. Overall self‐reported compliance was high: medians of 91.1% in the lipid‐based peanut paste group and 96.4% in the biscuit group. Both supplements were rated highly on overall likability (median score 6/7) and sensory properties. Qualitative findings showed that sustained use of the supplements was attributed to expected health benefits, favourable sensory attributes, and family support. The FGDs suggested providing the option to choose between more than one type/flavour of supplements to improve compliance. Sharing was mostly evident in the first week with higher sharing reported in the biscuit group. 相似文献
44.
Ian Freckelton SC 《Psychiatry, Psychology and Law》2013,20(1):171-173
The role of the community management order (CMO) in the management of mental illness has been associated with controversy. There is uncertainty as to the effectiveness of such involuntary treatment. Review of outcomes of involuntary community treatment has shown varied results, and in the remote areas of Australia the issue becomes more complex, and outcomes more difficult to measure. The Northern Territory's Mental Health Act 2000 has broadened criteria for detention. The decision to impose follow-up and case management on an individual (who may reside in a community several hundred kilometres from an in-patient facility) requires careful consideration of its ethical, professional and psychosocial implications. The trend toward increasing use of mental health legislation in the Northern Territory — particularly for Indigenous people — deserves close scrutiny in order that culturally appropriate and sensitive treatment plans are developed. 相似文献
45.
46.
47.
Cocaine use in pregnancy in Amsterdam 总被引:1,自引:0,他引:1
BJ Smit K Boer AM van Huis ISE Lie-A-Ling SC Schmidt 《Acta paediatrica (Oslo, Norway : 1992)》1994,83(S404):32-35
To study the effects of cocaine use in pregnancy in Amsterdam, clinical data on cocaine-using pregnant women ( n = 21) and their offspring ( n = 23) were obtained retrospectively (1987–1994) at the Academic Medical Center, Amsterdam. Infants exposed to cocaine had a median gestational age of 39 weeks and a median birth weight of 3090 g. There were six preterm infants, two small-for-gestational-age infants and five infants with a small head circumference. Three infants had a congenital malformation. One infant (Potter's syndrome) died shortly before birth. One infant had congenital syphilis, four had intracerebral abnormalities on ultrasound and four had abnormal neurologic symptoms in the neonatal period. One infant died after 21 days of life. At follow-up four infants showed abnormal development. In 12 of the 23 infants (52%), one or more possible effects of cocaine were found. 相似文献
48.
49.
50.