全文获取类型
收费全文 | 3367980篇 |
免费 | 249938篇 |
国内免费 | 8847篇 |
专业分类
耳鼻咽喉 | 45565篇 |
儿科学 | 110079篇 |
妇产科学 | 91797篇 |
基础医学 | 473786篇 |
口腔科学 | 94272篇 |
临床医学 | 308880篇 |
内科学 | 661681篇 |
皮肤病学 | 77202篇 |
神经病学 | 277657篇 |
特种医学 | 130942篇 |
外国民族医学 | 952篇 |
外科学 | 503381篇 |
综合类 | 72809篇 |
现状与发展 | 5篇 |
一般理论 | 1290篇 |
预防医学 | 265836篇 |
眼科学 | 74805篇 |
药学 | 246755篇 |
11篇 | |
中国医学 | 6625篇 |
肿瘤学 | 182435篇 |
出版年
2019年 | 26103篇 |
2018年 | 36850篇 |
2017年 | 28272篇 |
2016年 | 32544篇 |
2015年 | 36709篇 |
2014年 | 50851篇 |
2013年 | 76821篇 |
2012年 | 101615篇 |
2011年 | 107791篇 |
2010年 | 64957篇 |
2009年 | 62196篇 |
2008年 | 100534篇 |
2007年 | 107029篇 |
2006年 | 108849篇 |
2005年 | 104647篇 |
2004年 | 100870篇 |
2003年 | 97279篇 |
2002年 | 93703篇 |
2001年 | 161990篇 |
2000年 | 166412篇 |
1999年 | 139998篇 |
1998年 | 40417篇 |
1997年 | 35947篇 |
1996年 | 36404篇 |
1995年 | 35386篇 |
1994年 | 32647篇 |
1993年 | 30539篇 |
1992年 | 110355篇 |
1991年 | 106560篇 |
1990年 | 103219篇 |
1989年 | 99365篇 |
1988年 | 91290篇 |
1987年 | 89706篇 |
1986年 | 84392篇 |
1985年 | 80647篇 |
1984年 | 60411篇 |
1983年 | 51126篇 |
1982年 | 30391篇 |
1981年 | 27224篇 |
1979年 | 53898篇 |
1978年 | 38295篇 |
1977年 | 32327篇 |
1976年 | 30016篇 |
1975年 | 32036篇 |
1974年 | 38015篇 |
1973年 | 36262篇 |
1972年 | 33871篇 |
1971年 | 31437篇 |
1970年 | 28911篇 |
1969年 | 27508篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
991.
992.
S M Enright 《American journal of hospital pharmacy》1986,43(11):2849-2851
993.
994.
Physicians as gatekeepers. A complex challenge 总被引:1,自引:0,他引:1
M D Reagan 《The New England journal of medicine》1987,317(27):1731-1734
995.
John M Murkin 《Journal canadien d'anesthésie》2002,49(10):S21-S26
PURPOSE: To review the role of recombinant factor VIIa in anesthetic practice. SOURCE: A review of the published literature. MAIN FINDINGS: The mechanism of action of rFVIIa suggests enhancement of hemostasis limited to the site of injury without systemic activation of the coagulation cascade. In addition to its indication for use in patients with hemophilia, use of rFVIIa for treatment of uncontrolled massive hemorrhage in various peroperative settings appears to be rational, safe, and effective. Published results suggest that in trauma patients rFVIIa may play a role as an adjunctive hemostatic measure in addition to surgical hemostatic techniques There is preliminary evidence that hemorrhagic complications (eg. epistaxis, vaginal bleeding) associated with profound thrombocytopenia can be reversed with rFVIIa even at platelet counts below 10,000 per microL. Various case reports outlining the successful treatment with recombinant factor VIIa of patents experiencing intractable bleeding after valve replacement surgery, and with severe hemorrhage during therapy with left ventricular assist device, indicate the potential therapeutic efficacy of this agent in cardiac surgical procedures. Additionally, rFVIIa has been used successfully for treatment of massive postoperative bleeding following general surgery. CONCLUSIONS: rFVIIa is a novel hemostatic agent that shows promise in non-hemophiliac patents of a significant therapeutic role in variety of coagulopathic and hemorrhagic conditions in clinical situations ranging from thrombocytopenia, disseminated intravascular coagulation and transfusion-related coagulopathy, as well as in patients experiencing massive blood loss undergoing orthotopic liver transplantation, cardiac, orthopedic and genitourinary surgery. 相似文献
996.
997.
David C. Cone MD Susan M. Nedza MD MBA James J. Augustine MD Steven J. Davidson MD MBA 《Academic emergency medicine》2002,9(11):1085-1090
This paper reports the proceedings of the discussion panel assigned to look at clinical aspects of quality in emergency medicine. One of the seven stated objectives of the Academic Emergency Medicine consensus conference on quality in emergency medicine was to educate emergency physicians regarding quality measures and quality improvement as essential aspects of the practice of emergency medicine. Another topic of interest was a discussion of the value of information technology in facilitating quality care in the clinical practice of emergency medicine. It is important to note that this is not intended to be a comprehensive review of this extensive topic, but instead is designed to report the discussion that occurred at this session of the consensus conference. 相似文献
998.
Hinrich Böhner Detlef Kindgen-Milles Andreas Grust Rolf Buhl Wolf-Christian Lillotte Barbara T. Müller Eckhard Müller Günter Fürst Wilhelm Sandmann 《Langenbeck's archives of surgery / Deutsche Gesellschaft fur Chirurgie》2002,387(1):21-26
BACKGROUND: The efficacy of nasal continuous positive airway pressure (nCPAP) as a prophylactic method for preventing cardiopulmonary complications after major vascular surgery has not been investigated. PATIENTS/METHODS: In a prospective randomized trial, 204 patients undergoing elective midline laparotomy for vascular surgery were randomized to receive standard therapy ( n=105) or additional prophylactic nCPAP ( n=99) for the first postoperative night. Postoperative oxygenation, incidence of severe cardiac, and pulmonary complications, length of intensive care surveillance and length of total postoperative hospital stay (LOS) were compared. RESULTS: Prophylactic nCPAP significantly reduced the number of patients with severe oxygenation disturbances defined as paO(2) < 70 mmHg with FiO(2) > or = 0.7 (5 versus 17, P=.01). There were no differences with respect to death, cardiac and pulmonary complications, length of intensive care surveillance or LOS. CONCLUSION: Prophylactic 12 h nCPAP significantly reduces the occurrence of postoperative oxygenation disturbances but has no effect on cardiac or pulmonary complications, need for intensive care, LOS or mortality after major vascular surgery. 相似文献
999.
F. Berndsen D. Arvidsson L.-K. Enander C.-E. Leijonmarck U. Wingren C. Rudberg S. Smedberg G. Wickbom A. Montgomery 《Hernia》2002,6(2):56-61
Interest in inguinal hernia surgery has increased significantly with the introduction of new operating techniques during
the past decade. This multicenter study compared short-term results in patients treated by the laparoscopic transabdominal
preperitoneal patch technique (TAPP; n=518) and the Shouldice technique (n=524). We evaluated demographics, operative data, complications, hospital stay, postoperative pain, use of analgesics, functional
status, sick leave, and complaints up to 3 months postoperatively. The median operating time was shorter in the Shouldice
group (55 vs. 65 min), but there were no significant differences in complication rates, and major complications were rare.
The hospital stay was 1 day or less in over 98% of cases in both groups, but more operations were performed on outpatient
basis in the Shouldice group. In the TAPP group postoperative pain and analgesic consumption were less, postoperative functional
status was better, and sick leave was shorter (10 vs. 14 days). These results show that the two methods are equally safe and
have few major complications. The TAPP operation is associated with less postoperative pain, better postoperative functional
status, and shorter sick leave, but at the price of a longer operating time.
Electronic Publication 相似文献
1000.