全文获取类型
收费全文 | 2240篇 |
免费 | 280篇 |
国内免费 | 5篇 |
专业分类
耳鼻咽喉 | 45篇 |
儿科学 | 68篇 |
妇产科学 | 21篇 |
基础医学 | 236篇 |
口腔科学 | 175篇 |
临床医学 | 329篇 |
内科学 | 489篇 |
皮肤病学 | 45篇 |
神经病学 | 180篇 |
特种医学 | 34篇 |
外科学 | 284篇 |
综合类 | 25篇 |
一般理论 | 1篇 |
预防医学 | 278篇 |
眼科学 | 22篇 |
药学 | 137篇 |
肿瘤学 | 156篇 |
出版年
2024年 | 3篇 |
2023年 | 50篇 |
2022年 | 22篇 |
2021年 | 43篇 |
2020年 | 44篇 |
2019年 | 45篇 |
2018年 | 77篇 |
2017年 | 70篇 |
2016年 | 64篇 |
2015年 | 74篇 |
2014年 | 115篇 |
2013年 | 131篇 |
2012年 | 152篇 |
2011年 | 164篇 |
2010年 | 109篇 |
2009年 | 107篇 |
2008年 | 116篇 |
2007年 | 171篇 |
2006年 | 121篇 |
2005年 | 130篇 |
2004年 | 148篇 |
2003年 | 137篇 |
2002年 | 123篇 |
2001年 | 17篇 |
2000年 | 15篇 |
1999年 | 24篇 |
1998年 | 35篇 |
1997年 | 34篇 |
1996年 | 24篇 |
1995年 | 23篇 |
1994年 | 16篇 |
1993年 | 16篇 |
1992年 | 12篇 |
1991年 | 6篇 |
1990年 | 7篇 |
1989年 | 6篇 |
1988年 | 5篇 |
1987年 | 8篇 |
1985年 | 6篇 |
1984年 | 7篇 |
1983年 | 4篇 |
1982年 | 8篇 |
1981年 | 3篇 |
1980年 | 7篇 |
1979年 | 3篇 |
1977年 | 2篇 |
1976年 | 6篇 |
1966年 | 3篇 |
1960年 | 2篇 |
1936年 | 2篇 |
排序方式: 共有2525条查询结果,搜索用时 15 毫秒
51.
Andrea R.S. Huebner Amy Cassedy Tanya M. Brown H. Gerry Taylor Terry Stancin Michael W. Kirkwood Shari L. Wade 《PM & R》2018,10(5):462-471
Background
Mental health problems are common after pediatric traumatic brain injury (TBI). Many patients in need of mental health services do not receive them, but studies have not consistently used prospective and objective methods or followed samples for more than 1 year.Objective
To examine adolescents’ use of mental health services after TBI.Design
Secondary analysis from multicenter prospective randomized controlled trial.Setting
Five level 1 U.S. trauma centers.Participants
Adolescents aged 12-17 years with moderate-to-severe TBI were recruited for a randomized clinical trial (n = 132 at baseline, 124 at 6 months, 113 at 12 months, and 101 at 18 months).Methods
Participants were randomly assigned to counselor-assisted problem-solving or Internet resource comparison. Follow-up assessments were completed at 6, 12, and 18 months after baseline. Generalized estimating equations with a logit link were used to examine use of mental health services. Treatment group and participant impairment were examined as predictors of use.Main Outcome Measurements
Mental health care use was measured with the Service Assessment for Children and Adolescents; daily functioning and clinical outcome with the Child and Adolescent Functional Assessment Scale; behavioral and emotional functioning with the Child Behavior Checklist; and executive dysfunction with the Behavior Rating Inventory of Executive Function.Results
Use of mental health services ranged from 22% to 31% in the 2 years post-TBI. Participants with impairments were about 3 times more likely than those without impairments to receive services (odds ratio 4.61; 95% confidence interval 2.61-8.14; P < .001). However, 50%-68% of patients identified as impaired had unmet mental health care needs.Conclusions
Less than one half of adolescents with behavioral health needs after TBI received mental health services. Future studies are needed to examine barriers associated with seeking services after TBI and psychoeducation as preventive care for this population.Level of Evidence
II 相似文献52.
Role of adenosine receptors in resveratrol‐induced intraocular pressure lowering in rats with steroid‐induced ocular hypertension
下载免费PDF全文
![点击此处可从《Clinical & experimental ophthalmology》网站下载免费的PDF全文](/ch/ext_images/free.gif)
53.
Development of a fragile X syndrome (FXS) knowledge scale: towards a modified multidimensional measure of informed choice for FXS population carrier screening
下载免费PDF全文
![点击此处可从《Health expectations》网站下载免费的PDF全文](/ch/ext_images/free.gif)
Alice G. Ames BSc Alice Jaques PhD Obioha C. Ukoumunne PhD Alison D. Archibald PhD Rony E. Duncan PhD Jon Emery MA MBBCh DPhil Sylvia A. Metcalfe PhD 《Health expectations》2015,18(1):69-80
Background
Genetic carrier screening is increasingly possible for many conditions, but it is important to ensure decisions are informed. The multidimensional measure of informed choice (MMIC) is a quantitative instrument developed to evaluate informed choice in prenatal screening for Down syndrome, measuring knowledge, attitudes and uptake. To apply the MMIC in other screening settings, the knowledge scale must be modified.Objective
To develop and validate a modified MMIC knowledge scale for use with women undergoing carrier screening for fragile X syndrome (FXS).Setting and participants
Responses to MMIC items were collected through questionnaires as part of a FXS carrier screening pilot study in a preconception setting in Melbourne, Australia.Design
Ten knowledge scale items were developed using a modified Delphi technique. Cronbach''s alpha and factor analysis were used to validate the new FXS knowledge scale. We summarized the knowledge, attitudes and informed choice status based on the modified MMIC.Results
Two hundred and eighty‐five women were recruited, 241 eligible questionnaires were complete for analysis. The FXS knowledge scale items measured one salient construct and were internally consistent (alpha = 0.70). 71% (172/241) of participants were classified as having good knowledge, 70% (169/241) had positive attitudes and 27% (65/241) made an informed choice to accept or decline screening.Discussion and conclusions
We present the development of a knowledge scale as part of a MMIC to evaluate informed choice in population carrier screening for FXS. This can be used as a template by other researchers to develop knowledge scales for other conditions for use in the MMIC. 相似文献54.
As the epidemiology of TB in the United States changes, with more foreign-born and fewer native-born residents developing the disease, treatment can be expected to become more complicated and expensive. 相似文献
55.
OBJECTIVE: To evaluate, in an exploratory study, a hip school led by physical therapists for patients with hip dysfunction including pain. METHODS: Physicians in primary care and orthopedic units consecutively recruited patients by residential area to a treatment group (T group; n = 77) and a control group (C group; n = 68), mean age 61.8 years, 59 men, 86 women. Ninety-nine of the 145 subjects had radiologic hip osteoarthritis. Outcome measures were the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) and the Nottingham Health Profile (NHP). RESULTS: After hip school (6 months) the T group showed greater reduction on the subscales of pain and activity limitations (WOMAC) than the C group. The subscales sleep disturbances, pain, and physical mobility (NHP) showed improvement for the T group compared with at start. The results for the T group persisted after an additional 6 months. CONCLUSION: A hip school may reduce pain and activity limitations and improve health-related quality of life for patients with hip dysfunction including pain. 相似文献
56.
57.
Satoshi Inoue Zhenyue Hao Andrew J. Elia David Cescon Lily Zhou Jennifer Silvester Bryan Snow Isaac S. Harris Masato Sasaki Wanda Y. Li Momoe Itsumi Kazuo Yamamoto Takeshi Ueda Carmen Dominguez-Brauer Chiara Gorrini Iok In Christine Chio Jillian Haight Annick You-Ten Susan McCracken Andrew Wakeham Danny Ghazarian Linda J.Z. Penn Gerry Melino Tak W. Mak 《Genes & development》2013,27(10):1101-1114
58.
Kimberly M. Kelly Mayank Ajmera Sandipan Bhattacharjee Rini Vohra Gerry Hobbs Lubna Chaudhary Jame Abraham Doreen Agnese 《Patient education and counseling》2013
Objective
Breast cancer is the most common cancer among women worldwide. Given the advances in extending survival, the number of recently diagnosed breast cancer patients and longer-term breast cancer survivors is growing. The goals of this study were to better understand (1) perceptions of provider cancer recurrence risk communication, (2) perceived risk of breast cancer recurrence in cancer patients and survivors, and (3) accuracy of perceived risk.Methods
A survey was conducted on women with a prior breast cancer (n = 141).Results
Approximately 40% of women perceived that providers had not talked about their breast cancer recurrence risk; although only 1 person reported not wanting a physician to talk to her about her risk. Women were largely inaccurate in their assessments of risk. Greater worry, living in a rural area, and longer time since diagnosis were associated with greater inaccuracy. Women tended to think about distal recurrence of cancer as often of local recurrence.Conclusions
Perceived risk of breast cancer recurrence was inaccurate, and patients desired more communication about recurrence risk.Practice implications
Consistent with findings from other studies, greater efforts are needed to improve the communication of cancer recurrence risk to patients. Attention should be paid to those from rural areas and to distal cancer recurrence in women with a previous history of breast cancer. 相似文献59.