全文获取类型
收费全文 | 5583篇 |
免费 | 486篇 |
国内免费 | 23篇 |
专业分类
耳鼻咽喉 | 106篇 |
儿科学 | 241篇 |
妇产科学 | 85篇 |
基础医学 | 737篇 |
口腔科学 | 77篇 |
临床医学 | 500篇 |
内科学 | 1191篇 |
皮肤病学 | 152篇 |
神经病学 | 297篇 |
特种医学 | 237篇 |
外科学 | 645篇 |
综合类 | 322篇 |
现状与发展 | 1篇 |
一般理论 | 4篇 |
预防医学 | 351篇 |
眼科学 | 85篇 |
药学 | 434篇 |
中国医学 | 30篇 |
肿瘤学 | 597篇 |
出版年
2023年 | 50篇 |
2022年 | 72篇 |
2021年 | 126篇 |
2020年 | 84篇 |
2019年 | 103篇 |
2018年 | 142篇 |
2017年 | 99篇 |
2016年 | 135篇 |
2015年 | 133篇 |
2014年 | 181篇 |
2013年 | 217篇 |
2012年 | 358篇 |
2011年 | 342篇 |
2010年 | 209篇 |
2009年 | 182篇 |
2008年 | 282篇 |
2007年 | 313篇 |
2006年 | 218篇 |
2005年 | 197篇 |
2004年 | 194篇 |
2003年 | 180篇 |
2002年 | 150篇 |
2001年 | 161篇 |
2000年 | 165篇 |
1999年 | 162篇 |
1998年 | 81篇 |
1997年 | 57篇 |
1996年 | 48篇 |
1995年 | 51篇 |
1994年 | 68篇 |
1993年 | 47篇 |
1992年 | 125篇 |
1991年 | 84篇 |
1990年 | 79篇 |
1989年 | 110篇 |
1988年 | 62篇 |
1987年 | 72篇 |
1986年 | 56篇 |
1985年 | 63篇 |
1984年 | 45篇 |
1983年 | 33篇 |
1982年 | 33篇 |
1979年 | 28篇 |
1977年 | 46篇 |
1975年 | 28篇 |
1974年 | 32篇 |
1973年 | 41篇 |
1972年 | 34篇 |
1971年 | 29篇 |
1967年 | 33篇 |
排序方式: 共有6092条查询结果,搜索用时 9 毫秒
11.
12.
13.
Yasser Samman Imran Masood Vijay Vardhan Killampalli Neil Howell E. Kaya Alpar Sunil K. Banerjee 《European Journal of Trauma》2005,31(2):133-137
Background and Purpose:
Management of rib fractures constitutes a major part of the trauma workload of any unit. Rib fractures result in disrupted chest wall mechanics and ventilatory insufficiency. The ability of a lung injury scoring system to predict the degree of respiratory dysfunction after rib fractures was evaluated. 相似文献14.
15.
16.
Shyamal K Das Tapas K Banerjee Atanu Biswas Trishit Roy Deepak K Raut Arijit Chaudhuri Abhijit Hazra 《Movement disorders》2007,22(14):2031-2036
An epidemiological study on dystonia has not been reported from India. As part of a major study to find out the prevalence of major neurological disorders in the large urban city of Kolkata, Eastern India, we planned to determine the prevalence of primary dystonia. The study design was a cross-sectional study of a sample population obtained through stratified random selection and conducted in a two-stage procedure of screening by a nonprofessional team followed by confirmation of screened positive cases by the study neurologist. A total population of 52,377 was screened, and 29 subjects with dystonia were diagnosed. Out of them 23 subjects had primary dystonias [crude prevalence rate (CPR), 43.91/100,000; 95% confidence interval (CI), 28.41-64.81; age-standardized rates to world standard population, 49.06 (95% CI,31.74-72.41)] and all cases were focal type and predominantly of limb dystonia variety. Mean onset of dystonias were earlier in women (43.5 years) as compared to men (46.6 years). Thus our study on primary dystonia shows higher prevalence when compared with that of many studies globally, predominantly of focal type, earlier onset among women, and more cases of limb dystonias when compared with more prominent blepharospasm and cervical dystonias in western reports. 相似文献
17.
Richard C Oude Voshaar Sube Banerjee Mike Horan Robert Baldwin Neil Pendleton Rebekah Proctor Nick Tarrier Yvonne Woodward Alistair Burns 《The American journal of geriatric psychiatry》2007,15(9):807-814
OBJECTIVE: Depression after hip fracture surgery is prevalent and associated with increased mortality rates and impaired functional recovery. The incidence of new-onset depressive symptoms in patients initially not depressed after hip fracture surgery and their relationship with functional recovery is unknown. METHODS: A cohort of 139 nondepressed elderly patients (>60 years) hospitalized for hip fracture surgery were followed up for six months. Clinically significant depressive symptoms were defined as a score of 7 or more on the 15-item Geriatric Depression Scale. RESULTS: The authors found a cumulative incidence rate of 20.5% adjusted for dropouts. Multiple Cox-regression analyses yielded the presence of subthreshold symptoms of depression, anxiety, pain, and cognitive impairment at baseline, the premorbid level of mobility, and a history of (treated) depression as risk factors for incident depression (p <0.05). A forward, conditional procedure identified postoperative pain (hazard ratio [HR] = 1.32, 95% confidence interval [CI]: 1.14-1.53, Wald chi(2) = 13.57, df = 1, p <0.001) and baseline anxiety (HR = 1.25, 95% CI: 1.08-1.44, Wald chi(2) = 8.86, df = 1, p = 0.003) as the strongest independent risk factors. Incident depression was associated with a less favorable outcome at 3 months follow-up. CONCLUSION: This exploratory study identified two treatable baseline characteristics that predicted incident depression in nondepressed patients after hip-fracture surgery. 相似文献
18.
19.
Pouchitis: Risk Factors, Etiology, and Treatment 总被引:4,自引:0,他引:4
20.