全文获取类型
收费全文 | 275篇 |
免费 | 18篇 |
国内免费 | 6篇 |
专业分类
耳鼻咽喉 | 1篇 |
儿科学 | 1篇 |
妇产科学 | 1篇 |
基础医学 | 17篇 |
口腔科学 | 15篇 |
临床医学 | 19篇 |
内科学 | 19篇 |
皮肤病学 | 5篇 |
神经病学 | 5篇 |
特种医学 | 4篇 |
外科学 | 24篇 |
综合类 | 73篇 |
预防医学 | 16篇 |
眼科学 | 2篇 |
药学 | 21篇 |
中国医学 | 68篇 |
肿瘤学 | 8篇 |
出版年
2023年 | 4篇 |
2022年 | 3篇 |
2021年 | 7篇 |
2020年 | 7篇 |
2019年 | 43篇 |
2018年 | 21篇 |
2017年 | 5篇 |
2016年 | 8篇 |
2015年 | 4篇 |
2014年 | 23篇 |
2013年 | 10篇 |
2012年 | 27篇 |
2011年 | 18篇 |
2010年 | 9篇 |
2009年 | 11篇 |
2008年 | 7篇 |
2007年 | 3篇 |
2006年 | 9篇 |
2005年 | 4篇 |
2004年 | 5篇 |
2003年 | 3篇 |
2002年 | 4篇 |
2001年 | 8篇 |
2000年 | 4篇 |
1999年 | 4篇 |
1998年 | 2篇 |
1997年 | 4篇 |
1996年 | 5篇 |
1995年 | 3篇 |
1994年 | 8篇 |
1993年 | 2篇 |
1992年 | 1篇 |
1986年 | 1篇 |
1985年 | 2篇 |
1984年 | 1篇 |
1983年 | 3篇 |
1982年 | 7篇 |
1981年 | 2篇 |
1978年 | 4篇 |
1976年 | 2篇 |
1975年 | 1篇 |
排序方式: 共有299条查询结果,搜索用时 93 毫秒
1.
目的 了解2009-2019年西安市肺结核的流行特征及治疗转归情况,为完善西安市肺结核防治策略提供依据。方法 收集2009-2019年《传染病信息管理系统》中登记的肺结核患者病案信息数据,通过描述性研究方法对肺结核流行病学特征和治疗转归情况进行分析。结果 2009-2019年间西安市肺结核年平均发病率为49.06/10万。郊县、郊区、城区肺结核年平均发病率分别为54.13/10万、47.46/10万和46.19/10万;男性发病率是女性的1.85倍。职业分布排在前5位的为农民(47.48%),家政、家务及待业(14.65%),离退人员(9.55%),学生(8.63%)和工人(5.23%)。利福平敏感或耐药性未知患者的成功治疗率平均为98.03%,利福平耐药患者治疗成功率为51.47%。结论 西安市近年来肺结核发病率和治疗率呈增长趋势,利福平耐药患者治疗成功率较低,要加强对重点人群的健康促进工作,加大肺结核发现力度及患者治疗管理工作。 相似文献
2.
本实验采用单标记和双标记法,分别检测4种苯并(a)芘代谢产物(anti-BPDE,syn-BPDE,3-OH-BP和9-OH-BP)对BALB/3T3细胞DNA合成和程序外DNA合成(UDS)的影响,结果表明,anti-BPDE、syn-BPDE、3-OH-BP和9-OH-BP均在不同程度上使BALB/3T3细胞DNA合成增加,但只有anti-BPDE、3-OH-BP和9-OH-BP可诱发BALB/3T3细胞的UDS,说明这些苯并(a)芘代谢产物可损伤BALB/3T3细胞的DNA,同时,这种效应与苯并(a)芘代谢产物的立体结构有关。 相似文献
3.
多烯脂肪酸对脑血栓伴高脂血症病人降脂作用的疗效观察 总被引:2,自引:0,他引:2
目的:研究多烯脂肪酸胶囊对脑血栓伴高脂血症病人的降脂作用。选血脂康作对照。方法:60例脑血栓伴高脂血症病人随机分为二组:治疗组(n=31)及对照组(n=29)。服药前及服药后4周,8周查血脂。结果:⑴服药4周后TC和LDL-C分别降低21.02%和28.93%(多烯脂肪酸组)。⑵多烯脂肪酸组降低了34.06%的血清TG水平,效果显,结论:多烯脂肪酸胶囊降TG和LDL-C水平与血脂康作用相近,其降 相似文献
4.
钱晓勤 《南通大学学报(哲学社会科学版)》2000,(2)
朱熹的教育思想十分丰富 ,其“明人伦”、“教有成法”、居敬持志等教育思想对我们今天教育学生学会做人、培养学生创新能力有重要的现实指导意义 相似文献
5.
6.
7.
目的针对西安市雁塔区机井水的水质状况存在的问题,比较机井水与城市集中供水的水质质量,以加强对机井水用水企业单位的监管。方法收集西安市雁塔区2008、2009、2010年的水质检测报告156份,依据水源类型分为机井水(78份)和城市集中供水(78份),检测项目30项,采用SPSS13.0统计软件进行显著性统计分析。站果机井水中铁(1.78mg/L)、锰(0.33mg/L)、总硬度(672.25mg/L)、硫酸盐(110.68mg/L)、氯化物(134.23mg/L)、溶解性总固体(1279.00mg/L)、氟化物(1.06mg/L)、细菌总数(1.5×10^4CFU/mL)、大肠菌群(8MPN/100mL)的最高检测值高于国家生活引用水卫生标准;城市集中供水检测项目均符合国家生活引用水卫生标准;总硬度(t=12.09,P〈0.05)、硫酸盐(t=5.69,P〈0.05)、氯化物(t=9.043,P〈0.05)、溶解性总固体(t=10.57,P〈0.05)、氟化物(t=2.08,P=0.041〈O.05)、细菌总数(t=2.47,P=0.016〈0.05)、大肠菌群(t=2.20,P=0.031〈0.05)7项检测项目在机井水与城市供水组的水质上存在显著性差异。结论西安市雁塔区机井水的水质状况劣于城市集中供水,应切实加强对机井水用水企业单位的监管,加快城市集中供水的全区覆盖面。 相似文献
8.
《Indian journal of medical microbiology》2022,40(4):593-595
The performance of enzyme linked immunosorbent assays (EAST) for identifying six indoor allergens was evaluated using skin prick test (SPT) as reference tests in 154 children with allergic rhinitis. Sensitivity of EAST ranged from 9% (cat) to 54% (HDM) with specificity of 74%(cockroach) to 100% (cat) with an agreement ranged from 58 to 86%. Cut off values ?> ?0.35 kU/L showed best sensitivity and specificity. Our findings agree with extant literature which suggests that the ability of EAST to determine the precipitating allergen is moderate. Assays for definitively identifying the inhalant allergen are currently not available. 相似文献
9.
Background
Emergency departments see uniquely large numbers of patients across all demographic groups who are more likely to smoke and who attend with acute health concerns that can provide an impetus for behaviour change. Despite this potential opportunity, no smoking cessation programme in any UK emergency department yet exists. This study sought to identify perceived barriers and facilitators for emergency department smoking cessation activity, as well as potential modes of intervention, by exploring staff attitudes.Methods
16 members of staff from the Emergency Department, Derby NHS Teaching Hospital were purposively sampled to include a spectrum of clinical and non-clinical roles, grades, and employment duration. Semi-structured interviews were conducted within the department, and thematically analysed with dual-coding for validity under an interpretivist paradigm.Findings
Three themes were identified: roles of emergency departments, effects of smoking, and scope for intervention. Effects were described in individual-health and department-management contexts, with belief that reducing patient smoking would benefit both. Health promotion was seen as theoretically part of, and practically achievable within, the emergency department role. Lack of organisational support was a key barrier. Staff practice included occasional ad-hoc smoking cessation activity, but nothing routine. Those who did not incorporate smoking cessation into their practice felt that lack of training and support, rather than time, stopped them from doing so.Interpretation
Support for emergency department smoking cessation was found in the face of major barriers. Options to address these barriers were suggested, highlighting a willingness to engage. Complex interventions appeared impractical, and no single approach seemed universally applicable to emergency department environments. This study addresses the paucity of evidence around emergency department attitudes towards smoking cessation by providing a unique and in-depth picture of staff in the study department. It also balances clinical and population health viewpoints and has potential to inform promising prevention strategies in the emerging population-focused health-care structures. However, the study might not be generalisable to other emergency departments. Further research exploring patient attitudes would be a valuable next step.Funding
Health Education East Midlands. 相似文献10.