全文获取类型
收费全文 | 659篇 |
免费 | 102篇 |
国内免费 | 2篇 |
专业分类
耳鼻咽喉 | 7篇 |
儿科学 | 13篇 |
妇产科学 | 6篇 |
基础医学 | 94篇 |
口腔科学 | 4篇 |
临床医学 | 104篇 |
内科学 | 171篇 |
皮肤病学 | 8篇 |
神经病学 | 83篇 |
特种医学 | 22篇 |
外科学 | 94篇 |
综合类 | 2篇 |
一般理论 | 1篇 |
预防医学 | 76篇 |
眼科学 | 12篇 |
药学 | 17篇 |
中国医学 | 3篇 |
肿瘤学 | 46篇 |
出版年
2024年 | 1篇 |
2023年 | 6篇 |
2022年 | 22篇 |
2021年 | 38篇 |
2020年 | 28篇 |
2019年 | 42篇 |
2018年 | 50篇 |
2017年 | 28篇 |
2016年 | 38篇 |
2015年 | 38篇 |
2014年 | 34篇 |
2013年 | 36篇 |
2012年 | 58篇 |
2011年 | 53篇 |
2010年 | 35篇 |
2009年 | 25篇 |
2008年 | 25篇 |
2007年 | 25篇 |
2006年 | 22篇 |
2005年 | 24篇 |
2004年 | 17篇 |
2003年 | 19篇 |
2002年 | 18篇 |
2001年 | 6篇 |
2000年 | 13篇 |
1999年 | 1篇 |
1998年 | 4篇 |
1997年 | 4篇 |
1996年 | 2篇 |
1995年 | 3篇 |
1994年 | 5篇 |
1993年 | 3篇 |
1992年 | 6篇 |
1991年 | 3篇 |
1990年 | 9篇 |
1989年 | 1篇 |
1988年 | 4篇 |
1987年 | 1篇 |
1986年 | 1篇 |
1984年 | 1篇 |
1981年 | 2篇 |
1980年 | 1篇 |
1979年 | 1篇 |
1978年 | 2篇 |
1977年 | 1篇 |
1976年 | 2篇 |
1974年 | 2篇 |
1969年 | 1篇 |
1968年 | 1篇 |
1965年 | 1篇 |
排序方式: 共有763条查询结果,搜索用时 15 毫秒
161.
Jean Baptiste Akumuntu Uta Wehn Martin Mulenga Damir Brdjanovic 《International journal of hygiene and environmental health》2017,220(6):960-973
The lack of access to basic sanitation is a global concern and alarmingly prevalent in low- and middle- income countries. In the densely populated settlements of these countries, on-site sanitation systems are usually the only feasible option because dwellers there have no sewers in place to connect to. Using on-site sanitation facilities results in an accumulation of faecal sludge which needs to be properly managed to ensure the well-being of the users as well as the surrounding environment. Unfortunately, often the conditions for faecal sludge management (FSM) within dense settlements are adverse and thus hamper sustainable FSM. We use the normative framework of the FSM enabling environment to gather empirical evidence from densely populated settlements of Kigali city in Rwanda to examine current FSM practices and the extent to which these are being influenced and affected by the setting within which they are taking place. The analysis of the study findings confirms that the existing conditions for FSM in these settlements are inadequate. The specific constraints that hinder the achievement of sustainable FSM include limited government focus on the sanitation sector, high turnover of staff in relevant government institutions, pit sludge management is not placed on the sanitation projects agenda, the existing relevant bylaws are not pro-poor oriented, a lack of clear responsibilities, a lack of relevant local professional training opportunities, unaffordability of FSM services and an inhibition to discuss FSM. Drawing on the involved stakeholders’ own perceptions and suggestions, we identify possible approaches to overcome the identified constraints and to allow all actors in the FSM chain to contribute effectively to the management of faecal sludge in densely populated low-income urban settlements. Finally, our study also presents a contribution to the theoretical conceptualisation of the enabling environment for sustainable FSM. 相似文献
162.
163.
164.
165.
Risk of Bacterial Meningitis in Children 6 to 11 Months of Age With a First Simple Febrile Seizure: A Retrospective,Cross‐sectional,Observational Study
下载免费PDF全文
![点击此处可从《Academic emergency medicine》网站下载免费的PDF全文](/ch/ext_images/free.gif)
Romain Guedj MD Hélène Chappuy MD PhD Luigi Titomanlio MD PhD Thanh‐Van Trieu MD Sandra Biscardi MD Gisèle Nissack‐Obiketeki MD Béatrice Pellegrino MD Oussama Charara MD François Angoulvant MD PhD Thierry Billette De Villemeur MD Corinne Levy MD Robert Cohen MD Jean Baptiste Armengaud MD Ricardo Carbajal MD PhD 《Academic emergency medicine》2015,22(11):1290-1297
166.
167.
Aude Massoulard Jean-Claude Desport Aurlie Baptiste Pierre Jsus Jean-Louis Fraysse Carole Villemonteix Valrie Javerliat Laurence Gindre-Poulvelarie Didier Girard Sonia Desbordes 《Nutrition Clinique et Métabolisme》2009,23(3):109-112
Menu Committees (MC) are frequently present in French geriatric institutions like nursing homes, but with variable functioning conditions. Their aims are theoretically to favour communication about food, and to validate menus in each institution. However, statutory frame and bibliography on MC are poor and consequently pragmatic propositions based on daily practice can be made. They give optimal aims of MC, its composition including which role each participant plays and the functioning conditions before, during and after MC. A better satisfaction of residents, medical practitioners and employees, combined with surveys showing improvements in food supply could be signs of a good efficiency for MC. 相似文献
168.
Jesús Díez-Manglano José Barquero-Romero Pedro Almagro Francisco Javier Cabrera Francisco López García Lorena Montero Joan Baptiste Soriano 《Internal and emergency medicine》2014,9(4):419-425
Chronic obstructive pulmonary disease (COPD) and the metabolic syndrome (MetS) are considered public health challenges of the 21st century. The coexistence of MetS in COPD patients and any clinical differences between COPD patients with and without MetS have not been extensively studied. We aimed to describe the clinical characteristics of patients with MetS and COPD. An observational, multicenter study of 375 patients hospitalized for a COPD exacerbation with spirometric confirmation was performed. We measured the components of the MetS and collected comorbidity information using the Charlson index and other conditions. Dyspnea, use of steroids, exacerbations, and hospitalizations were also investigated. The overall prevalence of MetS in COPD patients was 42.9 %, was more frequent in women (59.5 %) than men (40.8 %), p = 0.02, but with no differences in age and smoking history. COPD patients with MetS had greater % predicted FEV1, more dyspnea, and more comorbidity and used more inhaled steroids (all p < 0.05). Diabetes, osteoporosis, coronary artery disease, and heart failure were more frequent in patients with MetS. They had been hospitalized more frequently for any cause but not for COPD. In multivariate analysis, the presence of MetS was independently associated with greater FEV1, inhaled steroids use, osteoporosis, diabetes, and heart failure. MetS is a frequent condition in COPD patients, and it is associated with greater FEV1, more dyspnea, and more comorbidities. 相似文献
169.
170.