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   26242篇
  免费   2370篇
  国内免费   265篇
耳鼻咽喉   58篇
儿科学   277篇
妇产科学   176篇
基础医学   685篇
口腔科学   643篇
临床医学   4137篇
内科学   1762篇
皮肤病学   176篇
神经病学   608篇
特种医学   206篇
外科学   1088篇
综合类   4716篇
一般理论   25篇
预防医学   11831篇
眼科学   122篇
药学   1619篇
  56篇
中国医学   359篇
肿瘤学   333篇
  2024年   13篇
  2023年   463篇
  2022年   436篇
  2021年   990篇
  2020年   1352篇
  2019年   924篇
  2018年   823篇
  2017年   925篇
  2016年   912篇
  2015年   975篇
  2014年   2299篇
  2013年   2334篇
  2012年   2188篇
  2011年   2129篇
  2010年   1731篇
  2009年   1435篇
  2008年   1497篇
  2007年   1292篇
  2006年   1177篇
  2005年   914篇
  2004年   776篇
  2003年   722篇
  2002年   445篇
  2001年   413篇
  2000年   308篇
  1999年   209篇
  1998年   180篇
  1997年   148篇
  1996年   133篇
  1995年   104篇
  1994年   79篇
  1993年   68篇
  1992年   57篇
  1991年   74篇
  1990年   62篇
  1989年   32篇
  1988年   41篇
  1987年   25篇
  1986年   22篇
  1985年   41篇
  1984年   23篇
  1983年   13篇
  1982年   13篇
  1981年   12篇
  1980年   20篇
  1979年   11篇
  1978年   6篇
  1976年   11篇
  1974年   6篇
  1973年   5篇
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
1.
目的:探讨基于虚拟教研室的公共卫生安全素养培育课程构建及实践。方法:选取某医学院校专科护理专业学生(护生)为研究对象,将护理1班45人作为试验组,将护理2班43人作为对照组,对照组对公共卫生安全知识实施线上与线下的常规教学,试验组实施基于虚拟教研室的公共卫生安全素养培育课程。比较两组护生内容掌握情况及学习满意度。结果:试验组护生的学习成绩明显高于对照组(P<0.01),试验组护生对教学的满意度为95.6%(43/45),明显高于对照组(P<0.05)。结论:基于虚拟教研室的公共卫生安全素养培育课程构建既可以广泛促进不同专业教师进行教学研究交流,全面提高教师教书育人能力,又可以使护生在学习过程中接触不同专业、不同领域的知识与技能,注重护生主体作用,提高学习效果和学习满意度。  相似文献   
2.
目的 探讨医院信息系统中增加住院陪护管理功能的应用效果。方法 基于互联网医院、智慧医院等信息系统,开发信息化住院陪护管理功能,包括流行病学史调查、免费核酸申请、电子陪护证办理、体温监测登记及上报和统计查询。该功能与医院智慧护理链接后全院应用。比较功能应用前和应用后的遵医嘱一患一陪达标率、有效陪护证达标率、体温监测并登记日上报达标率和陪护证使用追溯率,评价护士和管理者疫情防控管理的人均耗时以及对该管理功能的满意度。结果 应用信息化陪护管理功能后,一患一陪达标率、有效陪护证达标率、体温监测并登记日上报达标率和陪护证使用追溯率显著高于应用前(均P<0.05);护士陪护管理人均耗时从(554.13±30.77)s降至(311.67±21.54)s(P<0.05);护士和管理者对该信息化陪护管理功能的满意度显著提高(均P<0.05)。结论 信息化住院陪护管理功能的应用有效提升了疫情期间陪护的管理质量和管理效率,提高了一线护士和管理者的满意度。  相似文献   
3.
The study explored adult gerontology acute care nurse practitioner (AGACNP) student’s self-perception of confidence and competence in essential domains of nurse practitioner (NP) skills. A preclinical hospital immersion experience was developed to improve transition to the ACACNP role. AGACNP students participated in once-weekly sessions for 3 consecutive weeks, with 14 students completing the experience over a 3-year period. Data showed a 28.7% improvement in student’s self-perception of confidence and competence, with statistically significant improvement in clinical decision-making skills and NP role. AGACNP students requested additional days and appreciated direct faculty feedback, while faculty efficiently supported AGACNP role transition.  相似文献   
4.
5.
《Value in health》2022,25(8):1321-1327
ObjectivesIn Portugal, the dispensing of most outpatient specialty medicines is performed exclusively through hospital pharmacies and totally financed by the National Health Service. During the COVID-19 first wave, the government allowed the transfer of the dispensing of hospital-only medicines (HOMs) to community pharmacies (CPs). This study aimed to measure the value generated by the intervention of CP in the dispensing of HOM.MethodsA single-arm, before-and-after study with 3-month follow-up was conducted enrolling a randomly selected sample of patients or caregivers with at least 1 dispensation of HOM through CP. Data were collected by telephone interview. Main outcomes were patients’ self-reported adherence (Measure Treatment Adherence), health-related quality of life (EQ-5D 3-Level), satisfaction with the service, and costs related to HOM access.ResultsOverall 603 subjects were recruited to participate in the study (males 50.6%) with mean 55 years old (SD = 16). The already high mean adherence score to therapy improved significantly (P < .0001), and no statistically significant change (P > .5757) was found in the mean EQ-5D score between baseline (0.7 ± 0.3) and 3-month follow-up (0.8 ± 0.3). Annual savings account for €262.1/person, arising from travel expenses and absenteeism reduction. Participants reported a significant increase in satisfaction levels in all evaluated domains—pharmacist’s availability, opening hours, waiting time, privacy conditions, and overall experience.ConclusionsChanging the dispense setting to CP may promote better access and satisfaction. Moreover, it ensures the persistence of treatments, promotes savings for citizens, and reduces the burden of healthcare services, representing a crucial public health measure.  相似文献   
6.
BackgroundChyle leak (CL) is a clinically relevant complication after pancreatectomy. Its incidence and the associated risk factors are ill defined, and various treatments options have been described. There is no consensus, however, regarding optimal management. The present study aims to systematically review the literature on CL after pancreatectomy.MethodsA systematic review from PubMed, Scopus and Embase database was performed. Studies using a clear definition for CL and published from January 2000 to January 2021 were included. The PRISMA guidelines were followed during all stages of this systematic review. The MINORS score was used to assess methodological quality.ResultsLiterature search found 361 reports, 99 of which were duplicates. The titles and abstracts of 262 articles were finally screened. The references from the remaining 181 articles were manually assessed. After the exclusions, 43 articles were thoroughly assessed. A total of 23 articles were ultimately included for this review. The number of patients varied from 54 to 3532. Incidence of post pancreatectomy CL varied from 1.3% to 22.1%. Main risk factors were the extent of the surgery and early oral or enteral feeding. CL dried up spontaneously or after conservative management within 14 days in 53% to 100% of the cases.ConclusionsThe extent of surgery is the most common predictor of risk of CL. Conservative treatment has been shown to be effective in most cases and can be considered the treatment of choice. We propose a management algorithm based on the current available evidence.  相似文献   
7.
8.
Comprehensive evidence regarding the treatment of non-anaemic iron deficiency in patients undergoing valvular heart surgery is lacking. This study aimed to investigate the association between non-anaemic iron deficiency and postoperative outcomes in these patients. We retrospectively analysed 321 patients of which 180 (56%) had iron deficiency (defined as serum ferritin < 100 ng.ml-1 or < 300 ng.ml-1 with transferrin saturation < 20%). While the iron-deficient group had lower pre-operative haemoglobin levels than the non-iron deficient group (median (IQR [range]) 134 (127–141 [120–172]) g.l-1, 143 (133–150 [120–179]) g.l-1, p = 0.001), there was no between-group difference in allogeneic red blood cell transfusion. Median (IQR [range]) days alive and out of hospital at postoperative day 90 was 1 day shorter in the iron-deficient group (80 (77–82 [9–85]) days vs. 81 (79–83 [0–85]) days, p = 0.026). In multivariable analysis, only cardiopulmonary bypass duration (p = 0.032) and intra-operative allogeneic red blood cell transfusion (p = 0.011) were significantly associated with reduced days alive and out of hospital at postoperative day 90. Iron deficiency did not exert any adverse influence on secondary outcomes except length of hospital stay. Our findings indicate that non-anaemic iron deficiency alone is not associated with adverse effects in patients undergoing valvular heart surgery when it does not translate into an increased risk of allogeneic transfusion.  相似文献   
9.
目的 对社区医院人员防控知识强化测评模式的实施效果进行评价。方法 通过第三方数据收集平台,在规定时间内、实名制进行疫情防控知识问卷考核,以各岗位合格分数为标准,确认能否上岗,防控知识反复强化,题库动态更新,使各岗位人员保持高度认知的实战状态。结果 首次测试,医院全体人员新型冠状病毒肺炎防控知识平均分为78.37,100%的人知晓用过的一次性帽子和口罩的处理;只有23.27%的知晓医疗机构预检点或分诊台物品的消毒频次。强化测评模式实施1周后,医院全体人员新型冠状病毒肺炎防控知识平均分上升至93.84。上岗情况中,培训3 d上岗人数由48人上升至78人,培训第10天为149人,上岗率也由30.19%上升至第3天的49.05%,以及培训第10天的93.71%。结论 强制社区医院人员学习新型冠状病毒肺炎防控知识效果明显,整体水平短期内迅速提升,并保持高度认知,该强化测评模式对一线社区医院人员防控能力的提升有实际应用价值。  相似文献   
10.
目的 探讨营养风险与腹膜后肿瘤患者住院时间的相关性。方法 采用回顾性研究,选取2012年1月至2018年12月四川大学华西医院血管外科新入院腹膜后肿瘤患者60例,采用营养风险筛查表评估患者营养风险,收集患者体质指数、围术期血红蛋白和白蛋白水平、住院天数、术后恶心呕吐发生情况、术后排气、排便时间和首次进食时间。采用单因素分析比较不同患者住院时间,采用多重线性逐步回归分析患者住院时间的影响因素。结果 纳入的60例腹膜后肿瘤患者中,40例患者(66.7%)术前存在营养风险,52例患者(86.7%)术后存在营养风险;单因素分析显示,患者术前、术后营养风险 (术前P<0.001,术后P=0.043)、术前白蛋白 (P=0.019)、术后血红蛋白 (P=0.019)、术后白蛋白(P=0.025) 水平以及术后恶心呕吐 (P=0.001) 均会影响患者的住院时间;患者住院时间与围术期营养风险筛查工具评分、术后首次进食时间、术后排气时间和排便时间具有相关性,且相关性强(r=0.759~0.770; P<0.01);多因素分析显示术前营养风险是腹膜后肿瘤患者住院时间的重要预测因素(β=0.399)。结论 术前营养风险是腹膜后肿瘤患者住院时间的预测因子。  相似文献   
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