全文获取类型
收费全文 | 1370篇 |
免费 | 189篇 |
国内免费 | 1篇 |
专业分类
耳鼻咽喉 | 5篇 |
儿科学 | 6篇 |
妇产科学 | 108篇 |
基础医学 | 11篇 |
口腔科学 | 94篇 |
临床医学 | 213篇 |
内科学 | 202篇 |
皮肤病学 | 44篇 |
神经病学 | 249篇 |
特种医学 | 23篇 |
外科学 | 414篇 |
综合类 | 3篇 |
预防医学 | 56篇 |
眼科学 | 10篇 |
药学 | 3篇 |
肿瘤学 | 119篇 |
出版年
2024年 | 3篇 |
2023年 | 26篇 |
2022年 | 7篇 |
2021年 | 32篇 |
2020年 | 26篇 |
2019年 | 20篇 |
2018年 | 38篇 |
2017年 | 32篇 |
2016年 | 54篇 |
2015年 | 71篇 |
2014年 | 90篇 |
2013年 | 92篇 |
2012年 | 50篇 |
2011年 | 61篇 |
2010年 | 82篇 |
2009年 | 192篇 |
2008年 | 70篇 |
2007年 | 84篇 |
2006年 | 39篇 |
2005年 | 18篇 |
2004年 | 32篇 |
2003年 | 31篇 |
2002年 | 9篇 |
2001年 | 29篇 |
2000年 | 41篇 |
1999年 | 27篇 |
1998年 | 33篇 |
1997年 | 35篇 |
1996年 | 38篇 |
1995年 | 22篇 |
1994年 | 22篇 |
1993年 | 9篇 |
1992年 | 8篇 |
1991年 | 20篇 |
1990年 | 15篇 |
1989年 | 15篇 |
1988年 | 10篇 |
1987年 | 7篇 |
1986年 | 21篇 |
1985年 | 11篇 |
1984年 | 13篇 |
1983年 | 4篇 |
1982年 | 3篇 |
1978年 | 3篇 |
1964年 | 1篇 |
1963年 | 3篇 |
1962年 | 1篇 |
1961年 | 1篇 |
1956年 | 1篇 |
1955年 | 2篇 |
排序方式: 共有1560条查询结果,搜索用时 31 毫秒
21.
TRACY B. BRAMLETTE MD MPH DAVID H. LAWSON MD CARL V. WASHINGTON MD EMIR VELEDAR PHD BARRY R. JOHNS MD STACEY F. BRISMAN MD LIANA ABRAMOVA MD SUEPHY C. CHEN MD MS 《Dermatologic surgery》2007,33(1):11-16
BACKGROUND: Patients with thick (Breslow>4 mm) primary melanoma and/or regional nodal metastasis have a high risk of tumor recurrence. High-dose adjuvant interferon (IFN) alfa-2b offers/=50% risk of recurrence/disease-related mortality and offered IFN. Telephone surveys delineated reasons behind patients' decisions to accept IFN. RESULTS: Acceptors, 60 of 135 (45%), decided to take IFN alfa-2b whereas 75 of 135 (55%) declined. Being female (OR, 2.4; 95% CI, 1.17-5.03; p=.017) and positive SLN status (OR, 2.2; 95% CI, 1.01-4.97; p=.048) were strongly associated with patients who chose IFN. Acceptors of IFN were younger, more influenced by physicians, and less affected by depression and side effect profile (p<.05 for all). Decliners were more concerned by strained relationships with family and social life (p<.05). CONCLUSIONS: Gender and positive SLN were predictive of high-risk melanoma patients' acceptance of IFN treatment. Physician insight into melanoma patients' therapeutic decision-making process can guide patients through this difficult disease. 相似文献
22.
23.
MATTHIAS W. KÖNIG MD † ANNA M. VARUGHESE MD MPH † KATHLEEN A. BRENNEN CRNA SEAN BARCLAY CRNA T. MICHAEL SHACKLEFORD DO † PAUL J. SAMUELS MD † KRISTIN GORMAN BS JILLIAN ELLIS BA YU WANG MS ‡ TODD G. NICK PHD †‡ 《Paediatric anaesthesia》2009,19(8):748-755
Background: Pediatric dental procedures are increasingly performed under general anesthesia because of the inability to cooperate, situational anxiety, or other behavioral problems. Volatile anesthetics have been associated with emergence delirium in children, whereas the use of propofol for anesthetic maintenance has been shown to reduce the incidence of emergence delirium after other types of surgeries. The aim of this study is to compare a sevoflurane-based anesthetic with a propofol-based technique as it relates to the incidence of emergence delirium and the quality of recovery after pediatric dental surgery, in patients who present with risk factors for perioperative behavioral issues.
Methods: We prospectively collected data of 179 pediatric patients scheduled for ambulatory dental surgery using a double-blind and randomized trial design. Subjects were anesthetized following standardized protocols for either a sevoflurane- or a propofol-based technique. The incidence of emergency delirium, as measured by the Pediatric Anesthesia Emergence Delirium score, was the primary outcome. Secondary outcomes included the incidence of postoperative nausea and vomiting (PONV), number of nursing interventions in the recovery room, time to discharge readiness, and parental satisfaction.
Results: We found no difference in the incidence of emergence delirium after both types of anesthesia. However, use of sevoflurane significantly increased both the risk of PONV and the number of postoperative nursing interventions. Discharge criteria were met about 10 min earlier in patients anesthetized with sevoflurane. Parental satisfaction was equally high with both anesthesia regimens.
Conclusions: A propofol-based anesthetic technique did not lead to a lower incidence of emergence delirium after dental surgery in children but did result in significantly less PONV and fewer postoperative nursing interventions. 相似文献
Methods: We prospectively collected data of 179 pediatric patients scheduled for ambulatory dental surgery using a double-blind and randomized trial design. Subjects were anesthetized following standardized protocols for either a sevoflurane- or a propofol-based technique. The incidence of emergency delirium, as measured by the Pediatric Anesthesia Emergence Delirium score, was the primary outcome. Secondary outcomes included the incidence of postoperative nausea and vomiting (PONV), number of nursing interventions in the recovery room, time to discharge readiness, and parental satisfaction.
Results: We found no difference in the incidence of emergence delirium after both types of anesthesia. However, use of sevoflurane significantly increased both the risk of PONV and the number of postoperative nursing interventions. Discharge criteria were met about 10 min earlier in patients anesthetized with sevoflurane. Parental satisfaction was equally high with both anesthesia regimens.
Conclusions: A propofol-based anesthetic technique did not lead to a lower incidence of emergence delirium after dental surgery in children but did result in significantly less PONV and fewer postoperative nursing interventions. 相似文献
24.
肩、肘关节外科新进展 总被引:1,自引:0,他引:1
肩关节(Shoulder)
旋转袖(Rotator Cuff)
基础研究(Basic Science)
Zuckerman讨论了软骨诱导形态发生蛋白-2(cartilagederived morphogenetic protein-2,CDMP-2)的早期工作。在鼠肌腱修复中,4周时CDMP-2治疗组的修复强度高于未治疗组。Dines讨论了关于血小板衍生生长因子(platelet—derived growth factor,PDGF)和胰岛素样生长因子-1(insulin-like growth factor-1,IGF-1)最初的研究观察。 相似文献
25.
26.
27.
Renal artery duplex ultrasound criteria for the detection of significant in‐stent restenosis 下载免费PDF全文
28.
Background
Excessive alcohol consumption is most widespread among young adults. Practice guidelines recommend screening and physician advice, which could help address this common cause of injury and premature death. 相似文献29.
Comment on: The UK Experience of a Treatment Strategy for Pediatric Metastatic Medulloblastoma Comprising Intensive Induction Chemotherapy,Hyperfractionated Accelerated Radiotherapy,and Response Directed High‐Dose Myeloablative Chemotherapy or Maintenance Chemotherapy (Milan Strategy) 下载免费PDF全文
30.
Differences in Perceptions of and Practices Regarding Treatment of Alcohol Use Disorders Among VA Primary Care Providers in Urban and Rural Clinics 下载免费PDF全文