全文获取类型
收费全文 | 9115篇 |
免费 | 521篇 |
国内免费 | 51篇 |
专业分类
耳鼻咽喉 | 140篇 |
儿科学 | 202篇 |
妇产科学 | 189篇 |
基础医学 | 1213篇 |
口腔科学 | 591篇 |
临床医学 | 662篇 |
内科学 | 2075篇 |
皮肤病学 | 181篇 |
神经病学 | 940篇 |
特种医学 | 116篇 |
外科学 | 1041篇 |
综合类 | 38篇 |
一般理论 | 2篇 |
预防医学 | 891篇 |
眼科学 | 234篇 |
药学 | 639篇 |
中国医学 | 88篇 |
肿瘤学 | 445篇 |
出版年
2023年 | 84篇 |
2022年 | 189篇 |
2021年 | 343篇 |
2020年 | 198篇 |
2019年 | 269篇 |
2018年 | 350篇 |
2017年 | 234篇 |
2016年 | 277篇 |
2015年 | 282篇 |
2014年 | 401篇 |
2013年 | 469篇 |
2012年 | 721篇 |
2011年 | 789篇 |
2010年 | 456篇 |
2009年 | 285篇 |
2008年 | 534篇 |
2007年 | 543篇 |
2006年 | 475篇 |
2005年 | 462篇 |
2004年 | 394篇 |
2003年 | 344篇 |
2002年 | 304篇 |
2001年 | 148篇 |
2000年 | 146篇 |
1999年 | 129篇 |
1998年 | 57篇 |
1997年 | 41篇 |
1996年 | 39篇 |
1995年 | 44篇 |
1994年 | 23篇 |
1993年 | 27篇 |
1992年 | 71篇 |
1991年 | 70篇 |
1990年 | 53篇 |
1989年 | 56篇 |
1988年 | 41篇 |
1987年 | 37篇 |
1986年 | 21篇 |
1985年 | 33篇 |
1984年 | 16篇 |
1983年 | 23篇 |
1978年 | 23篇 |
1977年 | 12篇 |
1975年 | 15篇 |
1974年 | 12篇 |
1973年 | 14篇 |
1971年 | 11篇 |
1970年 | 11篇 |
1969年 | 13篇 |
1968年 | 17篇 |
排序方式: 共有9687条查询结果,搜索用时 15 毫秒
1.
2.
3.
John Lennon Silva Cunha Amanda Almeida Leite Thamiris de Castro Abrantes Lorena Passoni Vervloet Thayn Melo de Lima Morais Gerson de Oliveira Paiva Neto Tatiana Nayara Librio Kimura Snia Maria Soares Ferreira Ricardo Luiz Cavalcanti de Albuquerque‐Júnior Aline Corrêa Abraho Mario Jos Romaach Bruno Augusto Benevenuto de Andrade Oslei Paes de Almeida Ciro Dantas Soares 《Journal of cutaneous pathology》2021,48(1):24-33
4.
de Oliveira Adilson J M Solla Davi J. F. de Oliveira Klever F. Amaral Bruno S. Andrade Almir F. Kolias Angelos G. Paiva Wellingson S. 《Neurological sciences》2022,43(1):427-434
Neurological Sciences - Chronic subdural haematoma (CSDH) is one of the most common neurosurgical pathologies. The recurrence of chronic subdural haematomas is an important concern, considering... 相似文献
5.
6.
7.
Penny H Feldman Christopher M Murtaugh Liliana E Pezzin Margaret V McDonald Timothy R Peng 《Health services research》2005,40(3):865-886
OBJECTIVE: To assess the impact and cost-effectiveness of two information-based provider reminder interventions designed to improve self-care management and outcomes of heart failure (HF) patients. DATA SOURCES/STUDY SETTING: Interview and agency administrative data on 628 home care patients with a primary diagnosis of HF. STUDY DESIGN: Patients were treated by nurses randomly assigned to usual care or one of two intervention groups. The basic intervention was an e-mail to the patient's nurse highlighting six HF-specific clinical recommendations. The augmented intervention supplemented the initial nurse reminder with additional clinician and patient resources. DATA COLLECTION: Patient interviews were conducted 45 days post admission to measure self-management behaviors, HF-specific outcomes (Kansas City Cardiomyopathy Questionnaire-KCCQ), health-related quality of life (EuroQoL), and service use. PRINCIPAL FINDINGS: Both interventions improved the mean KCCQ summary score (15.3 and 12.9 percent, respectively) relative to usual care (p< or =.05). The basic intervention also yielded a higher EuroQoL score relative to usual care (p< or =.05). In addition, the interventions had a positive impact on medication knowledge, diet, and weight monitoring. The basic intervention was more cost-effective than the augmented intervention in improving clinical outcomes. CONCLUSIONS: This study demonstrates the positive impact of targeting evidence-based computer reminders to home health nurses to improve patient self-care behaviors, knowledge, and clinical outcomes. It also advances the field's limited understanding of the cost-effectiveness of selected strategies for translating research into practice. 相似文献
8.
9.
N N Andrade 《Hawaii medical journal》1988,47(4):181-2, 185
10.
Gabriel Mircescu Dimitrie Capsa Maria Covic Mirela Gherman Caprioara Gheorghe Gluhovschi Ovidiu Golea Nicolae Ursea Liliana Garneata Vasile Cepoi Nicolae Constantinovici Adrian Covic 《Nephrology, dialysis, transplantation》2004,19(12):2971-2980
INTRODUCTION. This report describes the current status of nephrology and renal replacement therapy (RRT) in Romania, a country with previously limited facilities, highlighting national changes in the European context. METHODS: Trends in RRT development were analysed in 2003, on a national basis, using the same questionnaires as in previous surveys (1991, 1995). Survival data and prognostic risk factors were calculated retrospectively from a large representative sample of 2284 patients starting RRT between January 1, 1995 and December 31, 2001 (44% of the total RRT population investigated). RESULTS: In 2003, RRT incidence [128 per million population (p.m.p.)] and prevalence (250 p.m.p.) were six and five times higher, respectively, than in 1995. The annual rate of increase in the stock of RRT patients (11%) was supported mainly by an exponential development of the continuous ambulatory peritoneal dialysis (CAPD) population (+600%), while the haemodialysis (HD) growth rate was stable (+33%) and renal transplantation made a marginal contribution. Renal care infrastructure followed the same trend: nephrology departments (+100%) and nephrologists (+205%). The characteristics of RRT incident patients changed accordingly to current European epidemiology (increasing age and prevalence of diabetes and nephroangiosclerosis). The estimated overall survival of RRT patients in Romania was 90.6% at 1 year [confidence interval (CI) 89.4-91.8] and 62.2% at 5 years (CI 59.4-65.0). Patients' survival was negatively influenced (Cox regression analysis) by age >65 years (P < 0.001), lack of pre-dialysis monitoring by a nephrologist [P = 0.01, hazards ratio (HR) = 0.8], severe anaemia, lack of erythropoetin treatment (P < 0.001, HR = 0.6), and co-morbidity, e.g. cardiovascular diseases (P < 0.001, HR = 1.8) and diabetes mellitus (P < 0.001, HR = 2.2). CONCLUSIONS: Although the rate of increase in RRT patient stock in 1996-2003 in Romania was the highest in Europe, the prevalence remained below the European mean. As CAPD had the greatest expansion, followed by HD, an effective transplantation programme must be set up to overcome the imbalance. The quality of RRT appears to be good and survival was similar to that in other registries. Further evolution implies strategies of prevention, based on national surveys, supported by the Romanian Renal Registry. 相似文献