首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   86267篇
  免费   6816篇
  国内免费   1422篇
耳鼻咽喉   618篇
儿科学   884篇
妇产科学   1003篇
基础医学   2620篇
口腔科学   1371篇
临床医学   30058篇
内科学   5531篇
皮肤病学   818篇
神经病学   2352篇
特种医学   1478篇
外国民族医学   5篇
外科学   4559篇
综合类   12854篇
现状与发展   1篇
一般理论   3篇
预防医学   12826篇
眼科学   758篇
药学   7824篇
  302篇
中国医学   5738篇
肿瘤学   2902篇
  2024年   140篇
  2023年   1833篇
  2022年   2583篇
  2021年   3642篇
  2020年   4486篇
  2019年   3407篇
  2018年   2992篇
  2017年   3467篇
  2016年   3506篇
  2015年   3562篇
  2014年   7951篇
  2013年   7113篇
  2012年   7405篇
  2011年   7527篇
  2010年   6400篇
  2009年   4716篇
  2008年   4149篇
  2007年   4152篇
  2006年   3616篇
  2005年   2614篇
  2004年   1960篇
  2003年   1536篇
  2002年   1215篇
  2001年   970篇
  2000年   699篇
  1999年   592篇
  1998年   401篇
  1997年   362篇
  1996年   285篇
  1995年   278篇
  1994年   197篇
  1993年   164篇
  1992年   145篇
  1991年   79篇
  1990年   59篇
  1989年   58篇
  1988年   37篇
  1987年   37篇
  1986年   16篇
  1985年   33篇
  1984年   30篇
  1983年   14篇
  1982年   17篇
  1981年   20篇
  1980年   9篇
  1979年   9篇
  1978年   4篇
  1977年   5篇
  1974年   3篇
  1973年   3篇
排序方式: 共有10000条查询结果,搜索用时 46 毫秒
11.
12.
13.
《Saudi Pharmaceutical Journal》2022,30(10):1521-1526
Due to the COVID-19 pandemic, the closure of educational institutions was executed during the period of lockdown. This subsequently led to alterations in daily routines and emotional distress, particularly among university students, affecting their sleep quality resulting in disturbance of immune functioning and mood regulation. Hence, the present study aimed to measure students' sleep quality during the first few months of the lockdown period. This study is a cross-sectional, single-centred survey that was done by distributed electronic questionnaire. The e-questionnaire was divided into 4 sections that assessed socio-demographic characteristics, sleep quality, psychological state and engagement in physical activity. Exactly 248 valid responses were received, 82 % female students. Students with poor sleep quality were three times greater than those with good sleep quality. No association were found between physical activity and sleep quality. However, a significant positive relationship between sleep quality and psychological state was observed (p < 0.01). In conclusion, this study suggests that the majority of pharmacy students in UiTM Puncak Alam are poor sleepers and psychological distress negatively affects sleep quality but, is mainly due to stress. Thus, interventions such as stress management programs and mental health support can be taken by the faculty's management to overcome this problem.  相似文献   
14.
目的 基于红外热成像技术探讨“扶正温阳法”对阳虚质的影响,探讨阳虚质者红外热图的共性规律,分析判断“扶正温阳法”干预阳虚质人群的疗效。方法 纳入30例阳虚质患者给予益气温阳药物在大椎、肾俞(双侧)、命门等进行穴位贴敷,分别在干预前后运用红外热成像技术测定督脉、腰部、腹部、双手及双足局部温度的变化。结果 干预后阳虚体质患者的督脉、腰部、腹部、双手、双足温度均升高(P<0.05),阳虚体质局部温度得以改善。结论 本研究发现“扶正温阳法”可诱发循经热传导现象,通过调节热能代谢而起到调治阳虚体质的作用,红外热成像技术可用来辅助评价阳虚质的治疗效果,对临床指导制定阳虚质人群的干预方案疗效判定具有指导意义。  相似文献   
15.
ObjectiveTo evaluate the impact of structured recommendations on follow-up completion for incidental lung nodules (ILNs).MethodsPatients with ILNs before and after implementation of structured Fleischner recommendations and electronic tracking were sampled randomly. The cohorts were compared for imaging follow-up. Multivariable logistic regression was used to assess appropriate follow-up and loss to follow-up, with independent variables including use of structured recommendations or tracking, age, sex, race, ethnicity, setting of the index test (inpatient, outpatient, emergency department), smoking history, and nodule features.ResultsIn all, 1,301 patients met final inclusion criteria, including 255 patients before and 1,046 patients after structured recommendations or tracking. Baseline differences were found in the pre- and postintervention groups, with smaller ILNs and younger age after implementing structured recommendations. Comparing pre- versus postintervention outcomes, 40.0% (100 of 250) versus 29.5% (309 of 1,046) of patients had no follow-up despite Fleischner indications for imaging (P = .002), and among the remaining patients, 56.6% (82 of 145) versus 75.0% (553 of 737) followed up on time (P < .001). Delayed follow-up was more frequent before intervention. Differences postintervention were mostly accounted for by nodules ≤8 mm in the outpatient setting (P < .001). In multivariable analysis, younger age, White race, outpatient setting, and larger nodule size showed significant association with appropriate follow-up completion (P < .015), but structured recommendations did not. Similar results applied for loss to follow-up.DiscussionConsistent use of structured reporting is likely key to mitigate selection bias when benchmarking rates of appropriate follow-up of ILN. Emergency department patients and inpatients are at high risk of missed or delayed follow-up despite structured recommendations.  相似文献   
16.
目的总结骨科围手术期患者静脉血栓栓塞症(VTE)物理预防的证据,提高护理人员VTE物理预防措施实施依从性。方法根据澳大利亚JBI循证卫生保健中心证据总结方法学,检索骨科围手术期患者VTE物理预防相关文献,根据纳入文献类型,由研究人员独立进行质量评价,并提取、汇总最佳证据。结果共纳入文献17篇,包含10篇指南、1篇证据总结、2篇专家共识、4篇系统评价。经过分析,总结出7类共30条骨科围手术期患者VTE物理预防最佳证据。结论最佳证据可为护士提供循证依据。但在应用时,还需评估具体临床情境,结合专业判断和患者意愿,针对性选择证据,以促进护理质量的持续改进。  相似文献   
17.

Objective

To collaboratively implement the age-friendly health systems framework, known as the 4Ms: What Matters, Medication, Mentation, and Mobility, at The Primary Health Network (PHN), a federally qualified health center.

Data Sources

Data were collected from PHN electronic medical records (EMRs) for individuals over age 65 from December 30, 2019 to December 24, 2021 and from Project ECHO© attendance and evaluation surveys.

Study Design

The telementoring educational program, Project ECHO©, was used to engage PHN health care professionals working in rural areas of Pennsylvania to incorporate the 4Ms into their practice starting with the annual wellness visit (AWV). Project ECHO© was launched at three primary care sites. After 18 months, it was then disseminated to an additional 18 sites creating pilot and comparison groups. Outcomes included codesigned patient process metrics using EMR data and project ECHO© participant data.

Data Collection Methods

EMR data were generated by system reports created by PHN's quality assurance program manager. Project ECHO© data were collected and managed using REDCap electronic data capture tools. Outcomes were aggregated, analyzed for trends over time, and compared between groups.

Principal Findings

All nine process outcomes increased from baseline to follow-up at the three initial sites, ranging from 4% to 43% g. At year two, the three initial sites had higher rates on AWVs (pilot 24%, comparison 12%; p < 0.0001), Advance Care Planning (New on file, pilot 8%, comparison 2%; Discussed with patient, pilot 18%, comparison 13%; Patient declined, pilot 0%, comparison 0%; p = 0.0001), Dementia Screening (pilot 24%, comparison 12%; p < 0.0001), Fall Risk Management (pilot 43%, comparison 10%; p < 0.0001), and Mobility Goal (pilot 19%, comparison 9%; p < 0.0001); and lower rates on High-Risk Medication Elimination (pilot 54%, comparison, 63%, p < 0.02).

Conclusions

Access to high-quality geriatric care for rural older adults can be improved by increasing health care professionals' knowledge of the 4Ms, beginning with its incorporation into the AWV.  相似文献   
18.
Background and aimTeamwork is assumed crucial in nursing. Nevertheless, nursing shortages in medical centers have thus far compelled nurse managers to use novice nurses. The present study aimd to explaining the challenges and experiences of novice nurses regarding teamwork in emergency departments.Materials and methodsUsing qualitative content analysis, 11 novice nurses working at emergency department, participated in this study. Data were collected with semi structured interview and analyzed by Graneheim and Lundman.ResultsThe data analysis led to the emergence of four themes of “essential teamwork skills development”, “contradictory relationships between team members”, “unpleasant feelings and experiences”, and, “personal growth and maturation during teamwork”.ConclusionFostering different personal aspects as prerequisites for teamwork, novice nurses will be able to deal with unpleasant feelings and experiences as well as contradictory relationships between team members in an effective manner. This challenging experience will thus give rise to personal growth and maturation during teamwork among them in emergency department.  相似文献   
19.
目的 探讨主动脉夹层术后患者心理状况、躯体症状对其生活质量的影响及作用机制,为制订干预计划提供参考。方法 采用广泛性焦虑障碍量表、患者健康问卷抑郁量表、躯体症状量表、12项简明健康状况调查表对327例主动脉夹层术后患者进行调查,根据相关性分析结果提出假设,应用AMOS软件进行结构方程模型分析。结果 主动脉夹层术后患者生活质量得分(81.56±7.36)分,焦虑得分2.00(0, 3.00)分,抑郁得分2.00(0, 3.00)分,躯体症状得分5.00(2.00, 8.00)分;焦虑、抑郁、躯体症状对生活质量有直接影响,焦虑、抑郁通过躯体症状对生活质量有间接影响(均P<0.05)。结论 主动脉夹层术后患者生活质量处于中等偏上水平,应早期对主动脉夹层术后患者的心理状况与躯体症状进行动态评估与监测,及时进行心理干预和症状管理,以改善其生活质量。  相似文献   
20.
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号