全文获取类型
收费全文 | 4249篇 |
免费 | 327篇 |
国内免费 | 7篇 |
专业分类
耳鼻咽喉 | 26篇 |
儿科学 | 149篇 |
妇产科学 | 122篇 |
基础医学 | 521篇 |
口腔科学 | 54篇 |
临床医学 | 821篇 |
内科学 | 608篇 |
皮肤病学 | 44篇 |
神经病学 | 379篇 |
特种医学 | 73篇 |
外科学 | 443篇 |
综合类 | 59篇 |
一般理论 | 2篇 |
预防医学 | 592篇 |
眼科学 | 70篇 |
药学 | 262篇 |
中国医学 | 3篇 |
肿瘤学 | 355篇 |
出版年
2023年 | 24篇 |
2022年 | 49篇 |
2021年 | 93篇 |
2020年 | 65篇 |
2019年 | 84篇 |
2018年 | 104篇 |
2017年 | 87篇 |
2016年 | 105篇 |
2015年 | 98篇 |
2014年 | 121篇 |
2013年 | 207篇 |
2012年 | 305篇 |
2011年 | 304篇 |
2010年 | 176篇 |
2009年 | 152篇 |
2008年 | 289篇 |
2007年 | 274篇 |
2006年 | 287篇 |
2005年 | 269篇 |
2004年 | 248篇 |
2003年 | 259篇 |
2002年 | 211篇 |
2001年 | 66篇 |
2000年 | 57篇 |
1999年 | 59篇 |
1998年 | 49篇 |
1997年 | 29篇 |
1996年 | 18篇 |
1995年 | 25篇 |
1994年 | 30篇 |
1993年 | 20篇 |
1992年 | 35篇 |
1991年 | 30篇 |
1990年 | 41篇 |
1989年 | 19篇 |
1988年 | 30篇 |
1987年 | 20篇 |
1986年 | 27篇 |
1985年 | 21篇 |
1984年 | 24篇 |
1983年 | 30篇 |
1982年 | 14篇 |
1981年 | 16篇 |
1980年 | 10篇 |
1979年 | 15篇 |
1978年 | 8篇 |
1976年 | 10篇 |
1975年 | 9篇 |
1974年 | 11篇 |
1971年 | 8篇 |
排序方式: 共有4583条查询结果,搜索用时 15 毫秒
991.
992.
Community/public health nursing faculty's knowledge,skills and attitudes of the Quad Council Competencies for Public Health Nurses
下载免费PDF全文
![点击此处可从《Public health nursing (Boston, Mass.)》网站下载免费的PDF全文](/ch/ext_images/free.gif)
993.
Charles J. Bechert MD Vicki Schnadig MD Ranjana Nawgiri MD 《Cancer cytopathology》2013,121(4):179-188
Merkel cell carcinoma (MCC) is a highly aggressive neuroendocrine carcinoma of the skin that occurs primarily in elderly or immunocompromised patients. For this report, the authors reviewed the diagnostic challenges associated with MCC encountered on their fine‐needle aspiration (FNA) service and also conducted an in‐depth review of the literature on MCC. A computer search for patients who were diagnosed with MCC by FNA at the authors' institution from 2006 to 2010 was conducted, and 5 patients were selected for cytologic and immunochemical analyses based on their varied and diagnostically challenging clinical presentations. The 5 selected patients had clinical findings commonly associated with MCC, including advanced age (4 of the 5 patients were ages 75‐85 years) and a history of previous malignancies (3 of the 5 patients had a history of previous malignancy), and 1 patient was diagnosed with a concomitant low‐grade lymphoma. The patients and their disease illustrated the protean clinical presentation of MCC and the clinical and cytologic challenges associated with this neoplasm. The current findings indicate the need for cytopathologists to be aware of the deceptive presentation of this neoplasm and its cytologic and immunochemical features to correctly diagnose this insidious neoplasm. Cancer (Cancer Cytopathol) 2013;121:179–188. © 2012 American Cancer Society. 相似文献
994.
995.
996.
997.
This paper presents data on the need for sexual health information and advice of 4353 students aged 13/14 years in 13 English secondary schools. Data were collected by peer educators as part of a sex education programme, and through a questionnaire survey administered by researchers. Data illustrate young people's need for concrete information and advice on issues related to physical development and puberty; transmission of sexually transmitted diseases; accessing and using condoms and other contraception; using sexual health services; managing relationships and dealing with jealousy, love and sexual attraction; how people have sex; sexual pleasure; masturbation; and homosexuality. Differences between the concerns and interests raised by young people and current UK guidance on sex and relationships education are examined, and the implications of these findings for designing future policy and effective school based sex education programmes are discussed. The paper highlights some of the wider social norms around sex and sexuality that influence young people's understanding and sexual behaviour, and the importance of addressing these within sex education is noted. Factors influencing the processes of expressing and assessing needs are explored. 相似文献
998.
999.
Hanne Van Tiggelen Nele Van Damme Sofie Theys Eline Vanheyste Sofie Verhaeghe Kimberly LeBlanc Karen Campbell Kevin Woo Ann Van Hecke Dimitri Beeckman 《Journal of tissue viability》2019,28(2):100-106
Background
Although skin tears are among the most prevalent acute wounds in nursing homes, their recognition as a unique condition remains in its infancy. Elderly patients are at risk of developing skin tears due to increased skin fragility and other contributing risk factors. In order to provide (cost-) effective prevention, patients at risk should be identified in a timely manner.Objectives
(1) To determine the point prevalence of skin tears and (2) to identify factors independently associated with skin tear presence in nursing home residents.Methods
A cross-sectional observational study was set up, including 1153 residents in 10 Belgian nursing homes. Data were collected by trained researchers and study nurses using patient records and skin observations. A multiple binary logistic regression model was designed to explore independent associated factors (significance level α?<?0.05).Results
The final sample consisted of 795 nursing home residents, of which 24 presented with skin tears, resulting in a point prevalence of 3.0%. Most skin tears were classified as category 3 (defined as complete flap loss) according to the International Skin Tear Advisory Panel (ISTAP) Classification System and 75.0% were located on the lower arms/legs. Five independent associated factors were identified: age, history of skin tears, chronic use of corticosteroids, dependency for transfers, and use of adhesives/dressings.Conclusions
This study revealed a skin tear prevalence of 3.0% in nursing home residents. Age, history of skin tears, chronic use of corticosteroids, dependency for transfers, and use of adhesives/dressings were independently associated with skin tear presence. 相似文献1000.
Christopher F. Sharpley PhD Vicki Bitsika PhD David R. H. Christie MBChB 《Journal of psychosocial oncology》2013,31(2):185-197
Antiandrogen therapy (AAT) is a common adjunct treatment for prostate cancer (PCa) patients and has shown significant benefits to long-term outcomes from radiation or surgery. Although AAT has some adverse side effects and data from breast cancer patients indicate that such side effects from hormonal therapies may contribute to anxiety and depression and may also hinder AAT treatment compliance, this issue has not been investigated within a sample of PCa patients. This study explores the incidence of AAT side effects in a sample of PCa patients, the links between those side effects and anxiety and depression, the possible ways in which these factors may contribute to AAT treatment noncompliance in PCa patients, and how psychosocial treatments might be developed to attend to this issue. 147 PCa patients completed questionnaires on demographic factors, treatment compliance, AAT side effects, anxiety and depression. About 18% of the sample reported AAT side effects, and there was a significant association between the presence of side effects and elevated anxiety and depression scores. Increased frequency of side effects was significantly associated with elevated anxiety, but not depression. The most powerful relationship between AAT side effects and anxiety-depression was for the subfactors of (1) Fatigue, Pain and Discomfort, and (2) Psychological Agitation and Pessimism. Although fatigue, pain, and discomfort may be outcomes of the hormonal treatment itself, psychological agitation and pessimism represent a discrete psychological pathway between AAT side effects and anxiety and depression and (potentially) treatment noncompliance. Methods of addressing patients’ loss of optimism in their treatment outcomes are discussed. 相似文献