全文获取类型
收费全文 | 426851篇 |
免费 | 30289篇 |
国内免费 | 9795篇 |
专业分类
耳鼻咽喉 | 4525篇 |
儿科学 | 11827篇 |
妇产科学 | 8244篇 |
基础医学 | 35418篇 |
口腔科学 | 9803篇 |
临床医学 | 46620篇 |
内科学 | 56130篇 |
皮肤病学 | 5484篇 |
神经病学 | 27310篇 |
特种医学 | 9116篇 |
外国民族医学 | 38篇 |
外科学 | 43331篇 |
综合类 | 62481篇 |
现状与发展 | 20篇 |
一般理论 | 31篇 |
预防医学 | 51813篇 |
眼科学 | 6374篇 |
药学 | 37319篇 |
424篇 | |
中国医学 | 32064篇 |
肿瘤学 | 18563篇 |
出版年
2024年 | 1382篇 |
2023年 | 7094篇 |
2022年 | 13221篇 |
2021年 | 17749篇 |
2020年 | 16489篇 |
2019年 | 21107篇 |
2018年 | 18929篇 |
2017年 | 15999篇 |
2016年 | 13930篇 |
2015年 | 12972篇 |
2014年 | 26170篇 |
2013年 | 28353篇 |
2012年 | 23730篇 |
2011年 | 25545篇 |
2010年 | 20238篇 |
2009年 | 18603篇 |
2008年 | 18183篇 |
2007年 | 18491篇 |
2006年 | 16136篇 |
2005年 | 13880篇 |
2004年 | 11289篇 |
2003年 | 9895篇 |
2002年 | 7956篇 |
2001年 | 7022篇 |
2000年 | 5813篇 |
1999年 | 4962篇 |
1998年 | 4086篇 |
1997年 | 3885篇 |
1996年 | 3306篇 |
1995年 | 3169篇 |
1994年 | 3019篇 |
1993年 | 2402篇 |
1992年 | 2442篇 |
1991年 | 2131篇 |
1990年 | 1856篇 |
1989年 | 1672篇 |
1988年 | 1585篇 |
1985年 | 4148篇 |
1984年 | 5141篇 |
1983年 | 3578篇 |
1982年 | 4075篇 |
1981年 | 3795篇 |
1980年 | 3388篇 |
1979年 | 3112篇 |
1978年 | 2670篇 |
1977年 | 2058篇 |
1976年 | 2297篇 |
1975年 | 1737篇 |
1974年 | 1505篇 |
1973年 | 1348篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
1.
2.
3.
目的:探讨经皮冠状动脉介入(PCI)术后病人的体力活动水平及其影响因素。方法:选择常州市三级甲等综合医院心内科接受PCI治疗的冠心病病人,收集资料,分析PCI术后冠心病病人体力活动动机、体力活动和自我效能现状;冠心病病人自我效能、体力活动动机与体力活动的相关性,并分析影响PCI术后病人体力活动水平的相关危险因素。结果:共发放调查问卷400份,回收400份,有效率为94.75%(379/400);379例冠心病病人术后每周体力活动为(3570.85±314.19)MET-min,以低、中强度为主;冠心病病人术后自我效能总分、体力活动动机总分与体力活动呈正相关(P<0.05);体质指数(BMI)、PCI次数≥2次、年龄、PCI支架数量≥3枚、自我效能、体力活动动机是影响PCI术后冠心病病人体力活动水平的高危因素(OR>1且P<0.05)。结论:PCI术后病人体力活动水平处于较低的水平,PCI次数、BMI、年龄、PCI支架数量、自我效能、体力活动动机是影响PCI术后冠心病病人体力活动水平的高危因素,临床需针对各高危因素制定相应的干预措施,提高病人体力活动水平。 相似文献
4.
5.
《Journal of vascular and interventional radiology : JVIR》2021,32(10):1449-1456
PurposeTo investigate the safety and efficacy of thyroid artery embolization (TAE) in the treatment of nodular goiter (NG).MethodsDuring a 5.5-year period, 56 consecutive patients with a NG underwent TAE. In Group A, there were 20 patients with a solitary/dominant 5–11-cm nodule, and in Group B, there were 36 patients with numerous nodules. Of the 56 patients, 47 (84%) had a retrosternal goiter and 25 had hyperthyroidism. In all patients, clinical and radiological evaluations were made at baseline and 6 months after TAE, and these parameters were statistically compared.ResultsIn 56 patients, 145 of the 146 thyroid arteries were successfully embolized. The 30-day mortality rate was 1.8%. Minor and major complications occurred in 25 and 2 patients, respectively. Six months after the TAE, the mean nodule volume was reduced from 80.2 mL to 25.0 mL, the mean thyroid volume was reduced from 147.0 mL to 62.6 mL, and the mean intrathoracic extension was reduced from 31.7 mm to 15.9 mm (P < .001). Of the 22 patients with non–Graves hyperthyroidism, 19 (86%) became euthyroid. The mean thyroid-related patient-reported outcome scores improved from 155.4 to 70.4 (P < .001). Of the 51 patients, 50 (98%) declared that they would recommend TAE to other patients with NG.ConclusionsTAE is safe and effective for the treatment of NG, with a significant volume reduction of the nodule(s) and thyroid gland. 相似文献
6.
7.
《Annales médico-psychologiques》2021,179(8):744-747
The teaching and clinical practice of professor Yves Pélicier contributed to the international development of a psychiatry centered on the whole of the person in a humanist approach. The theoretical developments were marked by the authenticity of the practice of the therapist and its deep sense of the human being thus truly founding a School. 相似文献
8.
《Journal of vascular and interventional radiology : JVIR》2022,33(4):359-367.e8
PurposeTo review and to compare indirectly the outcomes of minimally invasive therapies for the treatment of lower urinary tract symptoms secondary to benign prostatic hyperplasia.Materials and MethodsA literature search via Medline and Cochrane Central databases was completed for randomized control studies published between January 2000 to April 2020 for the following therapies: Rezum, Urolift, Aquablation, and prostatic artery embolization (PAE). Data on the following variables were included: International prostate symptom score (IPSS), maximum urinary flow rate, quality of life, and postvoid residual (PVR). Standard mean differences between treatments were compared through a meta-analysis using transurethral resection of the prostate (TURP) to assess differences in treatment effect.ResultsThere was no significant difference in outcomes between therapies for IPSS at the 3, 6, and 12-month follow ups. Although outcomes for Rezum were only available out to 3 months, there were no consistently significant differences in outcomes when comparing Aquablation versus PAE versus Rezum. TURP PVR was significantly better than Urolift at 3, 6, and 12 months. No significant differences in minor or major adverse events were noted.ConclusionAlthough significant differences in outcomes were limited, Aquablation and PAE were the most durable at 12 months. PAE has been well studied on multiple randomized control trials with minimal adverse events while Aquablation has limited high quality data and has been associated with bleeding-related complications. 相似文献
9.
10.
M.-A. Fauroux A. Germa P. Tramini C. Nabet 《Revue d'épidémiologie et de santé publique》2019,67(4):223-231
BackgroundThe aim of this study was to estimate the prevalence of dental prosthetic treatment and to investigate the demographic, social, economic and medical factors associated with the use of fixed and removable dentures in a representative sample of adults living in France.MethodsThe data were obtained from the 2002–2003 Decennial Health Survey, a cross-sectional study of a representative sample of the population living in France, which included 29,679 adults. Information was collected by interview. The variables collected were fixed denture, removable denture, age, gender, number of children, area of residence, nationality, educational attainment, family social status, employment status, annual household income per capita, supplementary insurance, chronic disease, eyesight problems/glasses, hearing problems/hearing aids. Multinomial logistic regression models were used to study the relationship between prosthetic treatment and demographic, socioeconomic and medical characteristics unadjusted, adjusted for age and adjusted for all the characteristics.ResultsThe prevalence of prosthetic treatment was 34.6% (95% confidence interval (CI): [34.1; 35.2]) for fixed prosthetic dentures and 13.8% (95% CI: [13.4; 14.2]) for removable prosthetic dentures. We showed a gradient between educational attainment and removable dentures; the odds ratio adjusted for all the variables (aOR) associated with no or primary education compared to post-secondary education was 2.56; 95% CI: [2.09; 3.13]. When annual household income per capita was low, subjects were less likely to report fixed dentures (aOR = 0.68; 95% CI: [0.62; 0.75]) than those with high annual household income per capita. Individuals without insurance less often reported fixed dentures than those with private insurance. Those reporting chronic disease were less likely to report fixed dentures (aOR = 0.87; 95% CI: [0.79; 0.95]) but more likely to report removable dentures (aOR = 1.29; 95% CI: [1.17; 1.43]) than those without chronic disease.ConclusionThis study reveals social, economic and medical inequalities in fixed and removable prosthetic treatment among adults in France. 相似文献