收费全文 | 128921篇 |
免费 | 9792篇 |
国内免费 | 222篇 |
耳鼻咽喉 | 1194篇 |
儿科学 | 3586篇 |
妇产科学 | 2728篇 |
基础医学 | 20302篇 |
口腔科学 | 3382篇 |
临床医学 | 10990篇 |
内科学 | 25954篇 |
皮肤病学 | 2244篇 |
神经病学 | 12499篇 |
特种医学 | 5304篇 |
外国民族医学 | 16篇 |
外科学 | 16117篇 |
综合类 | 538篇 |
现状与发展 | 1篇 |
一般理论 | 108篇 |
预防医学 | 14729篇 |
眼科学 | 2018篇 |
药学 | 7837篇 |
中国医学 | 238篇 |
肿瘤学 | 9150篇 |
2023年 | 516篇 |
2022年 | 425篇 |
2021年 | 1838篇 |
2020年 | 1468篇 |
2019年 | 2137篇 |
2018年 | 2682篇 |
2017年 | 2285篇 |
2016年 | 2457篇 |
2015年 | 2775篇 |
2014年 | 3772篇 |
2013年 | 4975篇 |
2012年 | 7660篇 |
2011年 | 7712篇 |
2010年 | 3978篇 |
2009年 | 4209篇 |
2008年 | 6838篇 |
2007年 | 7036篇 |
2006年 | 6807篇 |
2005年 | 6448篇 |
2004年 | 5470篇 |
2003年 | 5173篇 |
2002年 | 4723篇 |
2001年 | 4558篇 |
2000年 | 4563篇 |
1999年 | 4030篇 |
1998年 | 1526篇 |
1997年 | 1241篇 |
1996年 | 1314篇 |
1995年 | 1183篇 |
1994年 | 1095篇 |
1993年 | 995篇 |
1992年 | 2773篇 |
1991年 | 2509篇 |
1990年 | 2396篇 |
1989年 | 2226篇 |
1988年 | 2035篇 |
1987年 | 1792篇 |
1986年 | 1707篇 |
1985年 | 1633篇 |
1984年 | 1164篇 |
1983年 | 1004篇 |
1982年 | 537篇 |
1981年 | 473篇 |
1980年 | 408篇 |
1979年 | 885篇 |
1978年 | 534篇 |
1977年 | 439篇 |
1974年 | 444篇 |
1973年 | 432篇 |
1972年 | 384篇 |
Background
Mental health is a major public health priority, particularly among refugees worldwide. The United Nations Relief and Works Agency for Palestine Refugees (UNRWA) started to integrate mental health and psychosocial support (MHPSS) into its primary health-care services in Jordan in late 2017. This baseline study aimed to assess the knowledge, attitudes, practices, and perceived barriers among UNRWA health staff regarding the implementation of the MHPSS programme.Methods
The UNRWA Health Programme conducted a cross-sectional study of a sample of 220 out of the 390 male and female doctors, dentists, nurses, and midwives who work at 16 of the 25 UNRWA health centres in Jordan during November, 2017. Individuals on duty at the health centres on the day of the survey were included. The 16 health centres were selected based on their size and accessibility to surveyors (reflecting proximity to Amman, and the size of population served). Of the selected health centres, seven were large, seven were medium, and two were small according to the UNRWA classification of health centres (based on the number of medical doctors). A validated self-administered questionnaire was used. Ethics approval was granted by the UNRWA Health Programme ethics committee, and informed written consent was obtained from all participants. Data analysis was performed using SPSS (version 22).Findings
Of the participants, 73% (161 of 220) believed that their knowledge of MHPSS programmes was insufficient, with no significant difference (p=0·116) between different categories of staff. Furthermore, 88% (194 of 220) said that they needed more training, 67% (147 of 220) reported that the number of mental health cases is increasing, and 50% (110 of 220) that dealing with these cases is difficult. Reflecting on the past 12 months, 31% of staff (69 out of 220) reported meeting between one and ten children, and 45% (100 out of 220) reported meeting between one and ten adults suspected of having mental illnesses. The most suspected condition was depression (84%; 150 of 220), followed by epilepsy (64%; 140 of 220). The main perceived barriers to implementation included the limited availability of MHPSS policies (87%; 192 of 220), MH professionals (86%; 190 of 220), resources (86%; 189 out of 220), and lack of privacy (14%; 31 out of 220).Interpretation
Most health staff had positive attitudes towards MHPSS programme implementation but felt they lacked the required knowledge. There is a need for training and clear technical guidelines. Perceived barriers to MHPSS programme implementation need to be tackled with a structured plan of action.Funding
The UNRWA Health Programme, UNRWA Headquarters, Amman, Jordan. 相似文献Materials and methods: Medline, Embase, and Web of Science were searched. According to international guidelines, low bone mineral density was defined as Z-score?≤??2.0. In addition, we focused on Z-score?≤??1.0 because this may indicate a tendency towards low bone mineral density.
Results: We included 16 studies, comprising 465 patients aged 1–65?years. Moderate and conflicting evidence for low bone mineral density (Z-score?≤??2.0) was found for several body parts (total proximal femur, total body, distal femur, lumbar spine) in children with Gross Motor Function Classification Scales II and III. We found no evidence for low bone mineral density in children with Gross Motor Function Classification Scale I or adults, although there was a tendency towards low bone mineral density (Z-score?≤??1.0) for several body parts.
Conclusions: Although more high-quality research is needed, results indicate that deficits in bone mineral density are not restricted to non-ambulatory people with cerebral palsy.
- Implications for Rehabilitation
Although more high-quality research is needed, including adults and fracture risk assessment, the current study indicates that deficits in bone mineral density are not restricted to non-ambulatory people with CP.
Health care professionals should be aware that optimal nutrition, supplements on indication, and an active lifestyle, preferably with weight-bearing activities, are important in ambulatory people with CP, also from a bone quality point-of-view.
If indicated, medication and fall prevention training should be prescribed.
Objectives
To investigate the prognosis and possible prognostic factors of running-related injuries (RRIs) in novice runners.Design
Prospective cohort study.Methods
Participants of Start to Run, a 6-weeks course for novice runners in The Netherlands, were asked to participate in this study. Before the start of the course a baseline questionnaire, on demographics, physical activity and perceived health, was sent to runners willing to participate. The 26- or 52-weeks follow-up questionnaires assessed information on RRIs and their duration. Only participants that sustained a RRI during follow-up were included in the analyses. An injury duration of 10 weeks or shorter was regarded as a relatively good prognosis, while an injury duration of more than 10 weeks was defined as a poor prognosis. To determine the associations between baseline characteristics and injury prognosis and between injury location and injury prognosis, multivariable logistic regression analyses were performed.Results
347 participants (48.8%) sustained an RRI during follow-up. The RRIs had an overall median duration of eight weeks (range: 1–52 weeks). Participants with a previous RRI were more likely to have a poor prognosis (OR 2.31; 95%CI 1.12–4.79), while a calf injury showed a trend towards an association with a relatively good prognosis (OR 0.49; 95%CI 0.22–1.11).Conclusions
The duration of RRIs in novice runners is relatively long, with only calf injuries being associated with a good prognosis. This emphasizes the need of injury prevention measures in novice runners and adequate support during and after an RRI, especially in runners with a previous injury. 相似文献Method: This systematic review evaluated nine studies which met inclusion criteria in terms of participants, intervention procedures, outcomes and certainty of evidence.
Results: Seven studies revealed a substantial reduction of aggressive behaviour or anger. Certainty of evidence was rated inconclusive in most cases due to absence of experimental control.
Conclusions: We can conclude that body-oriented PMT, involving progressive relaxation and meditation procedure “Soles of the Feet”, is a promising approach. However, the paucity of studies and methodological limitations preclude classifying it as an evidence-based practice. This suggests stronger methodological research and research aimed at PMT’s mechanisms of action (e.g., improved interoceptive awareness) is warranted. 相似文献