全文获取类型
收费全文 | 9163篇 |
免费 | 658篇 |
国内免费 | 30篇 |
专业分类
耳鼻咽喉 | 61篇 |
儿科学 | 305篇 |
妇产科学 | 256篇 |
基础医学 | 1339篇 |
口腔科学 | 157篇 |
临床医学 | 1069篇 |
内科学 | 1872篇 |
皮肤病学 | 272篇 |
神经病学 | 1040篇 |
特种医学 | 177篇 |
外科学 | 891篇 |
综合类 | 36篇 |
一般理论 | 10篇 |
预防医学 | 936篇 |
眼科学 | 149篇 |
药学 | 521篇 |
中国医学 | 18篇 |
肿瘤学 | 742篇 |
出版年
2024年 | 7篇 |
2023年 | 75篇 |
2022年 | 134篇 |
2021年 | 378篇 |
2020年 | 235篇 |
2019年 | 323篇 |
2018年 | 384篇 |
2017年 | 268篇 |
2016年 | 282篇 |
2015年 | 286篇 |
2014年 | 444篇 |
2013年 | 554篇 |
2012年 | 829篇 |
2011年 | 766篇 |
2010年 | 404篇 |
2009年 | 361篇 |
2008年 | 524篇 |
2007年 | 620篇 |
2006年 | 572篇 |
2005年 | 541篇 |
2004年 | 460篇 |
2003年 | 367篇 |
2002年 | 357篇 |
2001年 | 42篇 |
2000年 | 40篇 |
1999年 | 52篇 |
1998年 | 67篇 |
1997年 | 50篇 |
1996年 | 41篇 |
1995年 | 33篇 |
1994年 | 36篇 |
1993年 | 25篇 |
1992年 | 26篇 |
1991年 | 10篇 |
1990年 | 14篇 |
1989年 | 14篇 |
1988年 | 10篇 |
1987年 | 6篇 |
1986年 | 18篇 |
1985年 | 12篇 |
1984年 | 11篇 |
1983年 | 18篇 |
1982年 | 13篇 |
1981年 | 8篇 |
1980年 | 15篇 |
1978年 | 6篇 |
1977年 | 8篇 |
1975年 | 6篇 |
1970年 | 7篇 |
1933年 | 7篇 |
排序方式: 共有9851条查询结果,搜索用时 15 毫秒
101.
The authors examine how crime and violence is reported and framed by the Los Angeles Times . Using a public health perspective, we examine whether health-oriented variables, such as causal factors and societal effects of crimes, are present in crime news stories. The classic stereotyping of crime and violence framing is strongly present in the Times . We discuss what changes would be useful to provide news consumers with a more accurate picture of crime in their community. 相似文献
102.
Oriol Yélamos M.D. Esther Roé M.D. Eulàlia Baselga M.D. Lluís Puig M.D. 《Pediatric dermatology》2014,31(1):113-115
Pulsed dye laser (PDL) has been used in adults to treat refractory cutaneous lupus erythematosus (CLE). We report the first case of CLE in a child successfully treated with PDL. 相似文献
103.
104.
Esther Yin-Nei Cho 《Child indicators research》2014,7(3):553-567
Comparing children’s wellbeing across countries has been a growing interest over the last two decades. The ranking method is frequently used to compare nations in a league table. While this provides an easy means of comparison, it may also conceal other, more specific information. As a complement to the ranking method, the cluster analysis approach classifies countries into groups by distinguishing their similarities and differences based on the dimensions which define children’s wellbeing. Extending beyond ranking to clustering, this alternative approach may enhance a broader understanding of comparative child wellbeing and facilitate more possibilities for future research. Based on the data in the latest report on children’s wellbeing published by United Nations Children’s Fund (UNICEF) in 2013, this study demonstrates the use of clustering approach as a complement to the ranking method in comparing the wellbeing of children across countries. 相似文献
105.
Mauro Loi Michael Frelinghuysen Natalie Desiree Klass Esther Oomen-De Hoop Patrick Vincent Granton Joachim Aerts Cornelis Verhoef Joost Nuyttens 《Clinical & experimental metastasis》2018,35(7):625-633
Stereotactic body radiotherapy (SBRT) has emerged as an effective option in oligo-metastatic cancer patients affected by lymph node metastases, but its use might be questioned due to risk of regional and distant dissemination through the lymph node chain. The primary aim of our study was to assess the loco-regional control following SBRT in this setting. Ninety-one patients undergoing SBRT for at least one lymph node metastasis from miscellaneous primary tumors were retrospectively evaluated for patterns of failure and toxicity. locoregional relapse-free survival (LRRFS) and distant metastasis-free survival (DMFS) at 4 years were 79 and 44%. Repeated use of local therapy after progression resulted in a median interval of 17 months until allocation to systemic therapy or supportive care. Forty-three percent of patients were alive at 4 years. Local failure, occurring in 15% of patients, was the only predictor of poor survival (HR: 3.06). Tumor diameter?≥?30 mm and urothelial primary tumor predicted for impaired local control (HR: 4.59 and 5.43, respectively). Metastases from pulmonary cancer showed a significant earlier distant dissemination (HR: 3.53). Only acute and late grade 1–2 toxicities were reported except for 1 case of G3 dysphagia. Loco-regional failure risk is low (18%) and justifies the use of local therapies for patients with oligometastatic disease. Durable disease remission can be achieved by iterative use of local approaches. Local control is correlated to improved OS. Diameter and primary tumor type may affect response to SBRT and risk for early metastatic dissemination. 相似文献
106.
107.
Esther Hjälmhult PhD RN RPHN Kirsten Lomborg PhD MScN RN 《Scandinavian journal of caring sciences》2012,26(4):654-662
Aim: The article aims to present a theoretical account of mothers’ first period at home with their newborn in Norway. Background: Mothers’ well‐being affects their babies and is therefore an important priority for public health. Early discharge after childbirth is common in many countries. In Norway, this has been practised for 5–10 years but without any distinct agreement between maternity hospitals and the community health services and without documented follow‐up care. Knowledge is lacking in how mothers deal with the first period at home with the baby. Method: Seven focus group discussions were conducted with 26 mothers who had babies 1.5–3 months old. The grounded theory method was used to gather and analyse data. Results: The mothers were strongly concerned about preserving their control and integrity in the new situation. This main concern was resolved by the strategy of prioritizing newborn care. The strategy encompassed a process of developing competence as a mother, changing focus in relationships, stretching to the critical level and seeking recognition. These parallel processes were inter‐related, sometimes mutually supportive and sometimes conflicting. When conflicts occurred, prioritizing newborn care guided mothers in finding solutions. Breaches of the implied conditions in health care tended to increase mothers’ level of strain and uncertainty and to influence their efficacy in breastfeeding the baby. Conclusion: Being a mother to a newborn is a dynamic and extensive process. Succeeding in breastfeeding seems especially sensitive and essential in motherhood. The idea that giving birth is a simple and normal situation may obscure the importance of seamless health care and the need for professional support and information. 相似文献
108.
Esther van de Vosse Els M. Verhard Anton J. T. Tool Adriëtte W. de Visser Taco W. Kuijpers Pieter S. Hiemstra Jaap T. van Dissel 《Annals of hematology》2011,90(2):151-158
We have analysed a family with nine congenital neutropenia patients in four generations, several of which we have studied
in a long-term follow-up of over 25 years. The patients were mild to severe neutropenic and suffered from various recurrent
bacterial infections. Mutations in the genes ELANE, CSF3R and GFI1 have been reported in patients with autosomal dominant congenital neutropenias. Using a small-scale linkage analysis with
markers around the ELANE, CSF3R, CSF3 and GFI1 genes, we were able to determine that the disease segregated with markers around the ELANE gene. We identified a novel mutation in the ELANE gene in all of the affected family members that was not present in any of the healthy family members. The mutation leads
to an A28S missense mutation in the mature protein. None of these patients developed leukaemia. This is the first truly multigenerational
family with mutations in ELANE as unambiguous cause of severe congenital neutropenia SCN. 相似文献
109.
110.