全文获取类型
收费全文 | 362603篇 |
免费 | 24084篇 |
国内免费 | 7896篇 |
专业分类
耳鼻咽喉 | 5914篇 |
儿科学 | 9704篇 |
妇产科学 | 6587篇 |
基础医学 | 28861篇 |
口腔科学 | 9448篇 |
临床医学 | 38838篇 |
内科学 | 42934篇 |
皮肤病学 | 4651篇 |
神经病学 | 19506篇 |
特种医学 | 9229篇 |
外国民族医学 | 32篇 |
外科学 | 46216篇 |
综合类 | 53066篇 |
现状与发展 | 12篇 |
一般理论 | 29篇 |
预防医学 | 35477篇 |
眼科学 | 5309篇 |
药学 | 31031篇 |
395篇 | |
中国医学 | 31115篇 |
肿瘤学 | 16229篇 |
出版年
2023年 | 5832篇 |
2022年 | 10379篇 |
2021年 | 14090篇 |
2020年 | 13278篇 |
2019年 | 19152篇 |
2018年 | 16568篇 |
2017年 | 13516篇 |
2016年 | 11147篇 |
2015年 | 10474篇 |
2014年 | 21289篇 |
2013年 | 22770篇 |
2012年 | 19351篇 |
2011年 | 21059篇 |
2010年 | 16964篇 |
2009年 | 15760篇 |
2008年 | 15254篇 |
2007年 | 15707篇 |
2006年 | 13720篇 |
2005年 | 11983篇 |
2004年 | 9890篇 |
2003年 | 8563篇 |
2002年 | 6760篇 |
2001年 | 6049篇 |
2000年 | 4975篇 |
1999年 | 4290篇 |
1998年 | 3496篇 |
1997年 | 3285篇 |
1996年 | 2810篇 |
1995年 | 2695篇 |
1994年 | 2594篇 |
1993年 | 2077篇 |
1992年 | 2085篇 |
1991年 | 1804篇 |
1990年 | 1578篇 |
1989年 | 1415篇 |
1988年 | 1332篇 |
1987年 | 1158篇 |
1985年 | 3828篇 |
1984年 | 4837篇 |
1983年 | 3374篇 |
1982年 | 3837篇 |
1981年 | 3568篇 |
1980年 | 3183篇 |
1979年 | 2932篇 |
1978年 | 2555篇 |
1977年 | 1923篇 |
1976年 | 2159篇 |
1975年 | 1637篇 |
1974年 | 1431篇 |
1973年 | 1277篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
91.
切开复位内固定治疗Gartland Ⅲ型肱骨髁上骨折 总被引:2,自引:0,他引:2
目的探讨切开复位内固定治疗Gartland Ⅲ型肱骨髁上骨折的疗效。方法1999年10月-2005年4月,对62例平均年龄7.5岁的患儿,应用切开复位克氏针固定治疗Gartland Ⅲ型肱骨髁上骨折。其中伸直尺偏型41例,伸直桡偏型18例,伸直中间型3例;无伴发血管、神经损伤和筋膜室间隔综合征。闭合性骨折47例,开放性骨折15例。结果术后56例获得随访,随访时间为6~15个月,平均11.5个月。所有骨折均获得愈合。根据Flynn标准进行疗效评价,其中优22例(占39.3%),良21例(37.5%),可9例(16.1%),差4例(7.1%)。伤后8h内手术的优良率为89.7%,伤后8h后手术的优良率为63.0%。直接手术治疗的优良率为90.1%,曾接受手法复位的优良率为67.7%。结论切开复位内固定治疗Gartland Ⅲ型肱骨髁上骨折可取得满意的疗效,是安全、有效的治疗方法。 相似文献
92.
G Titeca†§ F Poot†§ D Cassart‡ B Defays† D Pirard†§ M Comas† P Vereecken†¶†† V Verschaevec P Simon† M Heenen† 《Journal of the European Academy of Dermatology and Venereology》2007,21(6):771-776
BACKGROUND: Breast cancer is the most common cancer in women and therefore represents a major problem in public health. Data from patients' self-report questionnaires provide valuable information about the side-effects that patients may view as having a significantly detrimental impact on their quality of life (QOL) and yet are not always recognized as important by healthcare professionals. Cosmetology is a specific care for patients and there is actually no scientific evidence regarding effects on QOL for women with breast cancer. OBJECTIVE: The purpose of this study is to assess the impact of cosmetic care on QOL in breast cancer patients during chemotherapy and radiotherapy. METHODS: We developed a prospective, multicentre, randomized, controlled study including 27 patients. All the patients had to fill in a French-validated dermatologic specific quality-of-life questionnaire to compare the QOL of the two groups, the cosmetic group and the control group, at three different times of the adjuvant treatment. RESULTS: The results show a statistically significant difference between the cosmetic group and the control group in two areas of QOL: mood state and self-perception of the disease. CONCLUSION: This study emphasizes the interest of cosmetic care in breast cancer patients. However, further larger trials are needed to confirm this study. 相似文献
93.
肱骨近端骨折手术与非手术治疗方法疗效分析 总被引:19,自引:0,他引:19
目的分析肱骨近端骨折手术及非手术治疗方法的疗效。方法2002~2003年对43例肱骨近端骨折分别采用切开复位解剖钢板、拉力螺钉、克氏针固定及手法复位夹板固定治疗。采用Constant-murley评分方法评定疗效。结果所有患者随访10~19个月,平均11.5个月。24例手术患者中优11例,良8例,可4例,差1例,优良率为79.2%;19例非手术患者中优6例,良7例,可6例,优良率为68.4%;手术疗效明显优于非手术疗效,差异有显著性意义(P<0.05)。X线片示无骨折不愈合及肱骨头坏死发生。结论对Neer分型中Ⅰ型和Ⅱ型中部分患者应采用非手术手法复位夹板固定治疗。而Ⅲ、Ⅳ型应采用手术方法治疗,主要采用解剖钢板固定。拉力螺钉、克氏针作为一种辅助手段,在手术中不宜过多使用。 相似文献
94.
W.-S. Ahn D.-J. Kim† G.-T. Chae‡ J.-M. Lee S.-M. Bae§ J.-I. Sin§ Y.-W. Kim§ S.-E. Namkoong & I. P. Lee 《International journal of gynecological cancer》2004,14(4):589-594
A mushroom extract, Agaricus blazei Murill Kyowa (ABMK), has been reported to possess antimutagenic and antitumor effects. Here, we investigate the beneficial effects of ABMK consumption on immunological status and qualities of life in cancer patients undergoing chemotherapy. One hundred cervical, ovarian, and endometrial cancer patients were treated either with carboplatin (300 mg / m(2)) plus VP16 (etoposide, 100 mg / m(2)) or with carboplatin (300 mg / m(2)) plus taxol (175 mg / m(2)) every 3 weeks for at least three cycles with or without oral consumption of ABMK. We observed that natural killer cell activity was significantly higher in ABMK-treated group (ANOVA, n = 39, P < 0.002) as compared with nontreated placebo group (n = 61). However, no significant difference in lymphokine-activated killer and monocyte activities was observed in a manner similar to the count of specific immune cell populations between ABMK-treated and nontreated groups. However, chemotherapy-associated side effects such as appetite, alopecia, emotional stability, and general weakness were all improved by ABMK treatment. Taken together, this suggests that ABMK treatment might be beneficial for gynecological cancer patients undergoing chemotherapy. 相似文献
95.
眼轴线后部眶容积增大与眼球内陷比值的测定研究 总被引:1,自引:0,他引:1
目的:通过测量眼眶爆裂性骨折伴有眼眶扩大患者的后部眼眶容积、观察眼球内陷出现的时间及程度,研究后部眶容积扩大与眼球内陷的关系比值,为病情预测和眶内填充手术提供比较精确的参考数据。方法:将96例患者按发病时间分为早期病例组(60例、受伤时间1周以内)和晚期病例组(36例、受伤时间3个月以上),早期组除进行后部眼眶容积测量外,分别于1周、2周、3周测定眼球突出度(相差>1mm为阳性),记录眼球内陷出现时间,用卡方检验进行统计学分析;晚期组测量后部眶容积增大值和眼球内陷量,对其相关性采用Pearson统计方法进行统计学分析,并得出回归方程及相关系数。结果:早期组60例患者中,(58.33%)例患者在1周内出现眼球内陷,4(880%)例在2周内出现内陷,3周时有5(388.33%)例呈现出内陷;2周时出现眼球内陷的例数与1周时有显著性差异(χ2=62.484,P<0.001),2周时出现眼球内陷例数与3周时无差异(χ2=1.563,P>0.05),1周时出现眼球内陷例数与3周时有显著差异(χ2=76.885,P<0.001),后部眶容积增大与眼球内陷的比值约为1.0,两者之间呈正相关(r=0.994,P<0.001),即后部眶容积每增加1ml,产生1.0mm的眼球内陷。结论:眼球内陷通常于伤后2周~3周出现,3个月时趋向稳定;后部眶容积增大与眼球内陷产生比值为1.0,呈正相关;后部眶容积扩大与眼球内陷比值可预测发生眼球内陷的可能性和程度,为手术矫正眼球内陷提供可靠、精确的参考,具有十分重要的临床指导意义。 相似文献
96.
护士执业权是依法取得护士执业证书,以护士名义为社会提供护理服务的医务人员进行护理工作的权利和相关权益,是护士执业规则的核心内容,护士执业权属于公民劳动权益的范畴,是一种具有职业特权性质的特殊劳动权,应立法保护。本文试图通过对护士执业权的法理初步探讨,结合目前存在的侵害护士执业权的突出现象分析,提出保护该项权利的立法建议。 相似文献
97.
骨外科患者拔尿管时注入药物对排尿的影响 总被引:4,自引:0,他引:4
目的探讨提高长时间留置导尿管病人拔管后2h内排尿成功率的方法。方法按入院先后随机将64例导尿的男性骨折病人分两组,单数为观察组,双数为对照组。对照组常规拔尿管,观察组拔尿管时遵医嘱注入地塞米松5mg+2%利多卡因5ml+生理盐水5ml+庆大霉素8万U,比较首次排尿的自觉症状,包括尿痛、排尿困难、排尿障碍等。结果观察组较对照组病人首次排尿出现自觉症状的例数明显减少(P<0.01),有显著性差异。结论拔尿管时注入药物安全有效,明显提高了长期置管病人拔除尿管后首次排尿的成功率,减轻了病人的痛苦,有广泛的应用价值。 相似文献
98.
K. P. Burdon C. D. Langefeld L. E. Wagenknecht J. J. Carr B. I. Freedman D. Herrington D. W. Bowden 《Diabetic medicine》2006,23(3):228-234
Aims Cardiovascular disease (CVD) is a major complication of Type 2 diabetes mellitus. The renin‐angiotensin system (RAS) and nitric oxide production are both important regulators of vascular function and blood pressure. Genes encoding proteins involved in these pathways are candidates for a contribution to CVD in diabetic patients. We have investigated variants of the angiotensinogen (AGT), angiotensin converting enzyme (ACE), angiotensin type 1 receptor (AT1R) and endothelial nitric oxide synthase (NOS3) genes for association with subclinical measures of CVD in families with Type 2 diabetes mellitus (T2DM). Methods Atherosclerosis was measured by carotid intima‐media thickness and calcification of the carotid and coronary arteries in 620 European Americans and 117 African Americans in the Diabetes Heart Study. Because of the role of these systems in blood pressure regulation, blood pressure was also investigated. Results Compelling evidence of association was not detected with any of the SNPs with any outcome measures after adjustments for covariates despite sufficient power to detect relatively small differences in traits for specific genotype combinations. Conclusions Genetic variation of the RAS and NOS3 genes do not appear to strongly influence subclinical cardiovascular disease or blood pressure in this diabetic population. 相似文献
99.
M Atasoy† C Aliagaoglu‡ O Sahin§ M Ikbal¶ N Gursan§ 《Journal of the European Academy of Dermatology and Venereology》2006,20(3):337-340
Linear atrophoderma of Moulin has a distinctive disease pattern characterized by hyperpigmented atrophoderma and was described originally in 1992. It follows the line of Blaschko, and occurs without preceding inflammation, subsequent induration or scleroderma. The lesions usually develop during childhood or adolescence, and the prognosis is good. The diagnosis is made clinically and histopathologically. In our 18-year-old male patient, there were atrophic plaques unilaterally located on the trunk and arm, and white discoloration on all finger nails. Histopathological examination revealed epidermal atrophy together with disruption of collagen fibres. 相似文献
100.
Pieter F Vos Oliver Zilch Aag Jennekens-Schinkel Miriam Salden Jasper Nuyen Menno P Kooistra M Alexander C van Huffelen Margriet M Sitskoorn 《Nephrology, dialysis, transplantation》2006,21(9):2529-2535
BACKGROUND: End-stage renal disease patients have a poor quality of life (QoL), suffer from impaired cognitive functioning, and their electroencephalogram (EEG) shows abnormalities. Conventional haemodialysis (CHD) only partially restores these disorders. Short daily haemodialysis (SDHD) has been reported to improve QoL, but effects on cognitive functioning and EEG have yet to be described. METHODS: Of the 13 patients (11 male, 2 female, age 45.5 +/- 8.1 years), 11 completed the Kidney Disease Quality of Life and Affect Balance Scale questionnaires, 10 underwent neuropsychological testing, and all 13 underwent EEG examination. For the neuropsychological assessments, nine patients (six male, three female, age 45.4 +/- 12.6) who remained on the CHD schedule, served as controls. The dialysis schedule of thrice-a-week for 4 h was changed in the experimental group to six times a week for 2 h (SDHD) over a period of 6 months and back to thrice a week for 4 h. RESULTS: When on SDHD, patients rated several dimensions of health-related QoL as being improved. After resuming CHD, one of these dimensions again decreased and several others worsened even lower than baseline. Cognitive functioning did not change when compared with control data. On the EEG, alpha peak frequency increased slightly when on SDHD but decreased significantly after resuming CHD. CONCLUSIONS: SDHD improves health-related QoL, but has no clear effects on cognitive functioning and EEG. Resumption of CHD after SDHD decreases aspects of QoL and EEG alpha peak frequency but has no effect on cognitive functioning. 相似文献