全文获取类型
| 收费全文 | 38066篇 |
| 免费 | 3598篇 |
| 国内免费 | 66篇 |
专业分类
| 耳鼻咽喉 | 380篇 |
| 儿科学 | 1180篇 |
| 妇产科学 | 776篇 |
| 基础医学 | 5271篇 |
| 口腔科学 | 661篇 |
| 临床医学 | 4762篇 |
| 内科学 | 6764篇 |
| 皮肤病学 | 431篇 |
| 神经病学 | 4290篇 |
| 特种医学 | 1086篇 |
| 外科学 | 5201篇 |
| 综合类 | 766篇 |
| 一般理论 | 23篇 |
| 预防医学 | 4356篇 |
| 眼科学 | 739篇 |
| 药学 | 2428篇 |
| 中国医学 | 33篇 |
| 肿瘤学 | 2583篇 |
出版年
| 2023年 | 198篇 |
| 2022年 | 309篇 |
| 2021年 | 745篇 |
| 2020年 | 420篇 |
| 2019年 | 737篇 |
| 2018年 | 846篇 |
| 2017年 | 592篇 |
| 2016年 | 600篇 |
| 2015年 | 724篇 |
| 2014年 | 990篇 |
| 2013年 | 1599篇 |
| 2012年 | 2290篇 |
| 2011年 | 2224篇 |
| 2010年 | 1159篇 |
| 2009年 | 1129篇 |
| 2008年 | 1956篇 |
| 2007年 | 1965篇 |
| 2006年 | 1863篇 |
| 2005年 | 1747篇 |
| 2004年 | 1761篇 |
| 2003年 | 1652篇 |
| 2002年 | 1480篇 |
| 2001年 | 961篇 |
| 2000年 | 970篇 |
| 1999年 | 818篇 |
| 1998年 | 446篇 |
| 1997年 | 383篇 |
| 1996年 | 379篇 |
| 1995年 | 340篇 |
| 1994年 | 306篇 |
| 1993年 | 339篇 |
| 1992年 | 674篇 |
| 1991年 | 662篇 |
| 1990年 | 615篇 |
| 1989年 | 631篇 |
| 1988年 | 594篇 |
| 1987年 | 603篇 |
| 1986年 | 554篇 |
| 1985年 | 539篇 |
| 1984年 | 432篇 |
| 1983年 | 382篇 |
| 1982年 | 283篇 |
| 1981年 | 247篇 |
| 1980年 | 233篇 |
| 1979年 | 380篇 |
| 1978年 | 210篇 |
| 1977年 | 211篇 |
| 1976年 | 237篇 |
| 1974年 | 257篇 |
| 1973年 | 240篇 |
排序方式： 共有10000条查询结果，搜索用时 15 毫秒
11.
van der Heijden Amber A. W. A. de Bruijne Martine C. Nijpels Giel Hugtenburg Jacqueline G. 《International journal of clinical pharmacy》2019,41(4):963-971
International Journal of Clinical Pharmacy - Background Drug-related problems (DRP) following hospital discharge may cause morbidity, mortality and hospital re-admissions. It is unclear whether a... 相似文献
12.
13.
14.
15.
José A. Lorente Pablo Cardinal-Fernández Diego Muñoz Fernando Frutos-Vivar Arnaud W. Thille Carlos Jaramillo Aida Ballén-Barragán José M. Rodríguez Oscar Peñuelas Guillermo Ortiz José Blanco Bruno Valle Pinheiro Nicolás Nin María del Carmen Marin Andrés Esteban Taylor B. Thompson 《Intensive care medicine》2015,41(11):1921-1930
16.
17.
Bimal Bhindi Christine M. Lohse Phillip J. Schulte Ross J. Mason John C. Cheville Stephen A. Boorjian Bradley C. Leibovich R. Houston Thompson 《European urology》2019,75(5):766-772
Background
Partial nephrectomy (PN) is generally favored for cT1 tumors over radical nephrectomy (RN) when technically feasible. However, it can be unclear whether the additional risks of PN are worth the magnitude of renal function benefit.Objective
To develop preoperative tools to predict long-term estimated glomerular filtration rate (eGFR) beyond 30 d following PN and RN, separately.Design, setting, and participants
In this retrospective cohort study, patients who underwent RN or PN for a single nonmetastatic renal tumor between 1997 and 2014 at our institution were identified. Exclusion criteria were venous tumor thrombus and preoperative eGFR <15 ml/min/1.73 m2.Intervention
RN and PN.Outcome measurements and statistical analysis
Hierarchical generalized linear mixed-effect models with backward selection of candidate preoperative features were used to predict long-term eGFR following RN and PN, separately. Predictive ability was summarized using marginal , which ranges from 0 to 1, with higher values indicating increased predictive ability.Results and limitations
The analysis included 1152 patients (13 206 eGFR observations) who underwent RN and 1920 patients (18 652 eGFR observations) who underwent PN, with mean preoperative eGFRs of 66 ml/min/1.73 m2 (standard deviation [SD] = 18) and 72 ml/min/1.73 m2 (SD = 20), respectively. The model to predict eGFR after RN included age, diabetes, preoperative eGFR, preoperative proteinuria, tumor size, time from surgery, and an interaction between time from surgery and age (marginal ). The model to predict eGFR after PN included age, presence of a solitary kidney, diabetes, hypertension, preoperative eGFR, preoperative proteinuria, surgical approach, time from surgery, and interaction terms between time from surgery and age, diabetes, preoperative eGFR, and preoperative proteinuria (marginal ). Limitations include the lack of data on renal tumor complexity and the single-center design; generalizability needs to be confirmed in external cohorts.Conclusions
We developed preoperative tools to predict renal function outcomes following RN and PN. Pending validation, these tools should be helpful for patient counseling and clinical decision-making.Patient summary
We developed models to predict kidney function outcomes after partial and radical nephrectomy based on preoperative features. This should help clinicians during patient counseling and decision-making in the management of kidney tumors. 相似文献18.
19.
20.
Fluid role boundaries: exploring the contribution of the advanced nurse practitioner to multi‐professional palliative care 
下载免费PDF全文
下载免费PDF全文