全文获取类型
收费全文 | 3698篇 |
免费 | 211篇 |
国内免费 | 43篇 |
专业分类
耳鼻咽喉 | 87篇 |
儿科学 | 90篇 |
妇产科学 | 51篇 |
基础医学 | 408篇 |
口腔科学 | 72篇 |
临床医学 | 364篇 |
内科学 | 1130篇 |
皮肤病学 | 45篇 |
神经病学 | 325篇 |
特种医学 | 110篇 |
外科学 | 550篇 |
综合类 | 9篇 |
预防医学 | 133篇 |
眼科学 | 73篇 |
药学 | 220篇 |
中国医学 | 3篇 |
肿瘤学 | 282篇 |
出版年
2024年 | 4篇 |
2023年 | 22篇 |
2022年 | 43篇 |
2021年 | 86篇 |
2020年 | 63篇 |
2019年 | 69篇 |
2018年 | 73篇 |
2017年 | 79篇 |
2016年 | 79篇 |
2015年 | 84篇 |
2014年 | 114篇 |
2013年 | 150篇 |
2012年 | 241篇 |
2011年 | 242篇 |
2010年 | 152篇 |
2009年 | 166篇 |
2008年 | 229篇 |
2007年 | 263篇 |
2006年 | 255篇 |
2005年 | 293篇 |
2004年 | 263篇 |
2003年 | 220篇 |
2002年 | 210篇 |
2001年 | 49篇 |
2000年 | 29篇 |
1999年 | 29篇 |
1998年 | 46篇 |
1997年 | 29篇 |
1996年 | 34篇 |
1995年 | 38篇 |
1994年 | 23篇 |
1993年 | 24篇 |
1992年 | 23篇 |
1991年 | 19篇 |
1990年 | 19篇 |
1989年 | 16篇 |
1988年 | 16篇 |
1987年 | 15篇 |
1986年 | 8篇 |
1985年 | 18篇 |
1984年 | 18篇 |
1983年 | 15篇 |
1982年 | 13篇 |
1981年 | 10篇 |
1980年 | 11篇 |
1979年 | 4篇 |
1975年 | 4篇 |
1972年 | 5篇 |
1971年 | 8篇 |
1967年 | 3篇 |
排序方式: 共有3952条查询结果,搜索用时 0 毫秒
991.
992.
Several large, randomized, multicenter studies in diabetic and nondiabetic patients with chronic proteinuric nephropathies
have clearly demonstrated that angiotensin-converting enzyme (ACE) inhibitors and angiotensin II receptor blockers (ARB) are
able to reduce urinary protein excretion and retard renal disease progression. However, the number of patients who reach end-stage
renal failure is still considerable and there is a great need to identify therapies that can arrest evolution of kidney damage.
Maximizing renin-angiotensin system (RAS) blockade through combined ACE inhibitor and ARB therapy has been shown to further
increase antiproteinuric and nephroprotective effects of each drug class. However, in order to slow to the greatest extent
progression of renal disease, the ideal therapeutic approach for patients with proteinuric nephropathies should be a multimodal
strategy including dual RAS blockade, antialdosterone therapy, lipid-lowering agents, smoking cessation, and tight glucose
control for diabetes. 相似文献
993.
994.
995.
Nabila Bouatia-Naji Amélie Bonnefond Devin A. Baerenwald Marion Marchand Marco Bugliani Piero Marchetti Fran?ois Pattou Richard L. Printz Brian P. Flemming Obi C. Umunakwe Nicholas L. Conley Martine Vaxillaire Olivier Lantieri Beverley Balkau Michel Marre Claire Lévy-Marchal Paul Elliott Marjo-Riitta Jarvelin David Meyre Christian Dina James K. Oeser Philippe Froguel Richard M. O'Brien 《Diabetes》2010,59(10):2662-2671
996.
997.
Roberto Ballarin Mario Spaggiari Fabrizio Di Benedetto Roberto Montalti Michele Masetti Nicola De Ruvo Antonio Romano Gian Piero Guerrini Maria Grazia De Blasiis Giorgio Enrico Gerunda 《Journal of gastrointestinal surgery》2009,13(2):341-348
Introduction Radical resection is the only potential cure for pancreatic malignancies and a useful treatment for other benign diseases,
such as pancreatitis. Over the last two decades, medical and surgical improvements have drastically changed the postoperative
outcome of elderly patients undergoing pancreatic resection, and appropriate treatment for elderly potential candidates for
pancreatic resection has become an important issue.
Materials and Methods Ninety-eight consecutive patients undergoing radical pancreatic resection between 2003 and 2006 at the Surgery Unit of the
University of Modena, Italy, were considered and divided into two age groups, i.e., over 75-year-olds (group 1, 23 patients)
and under 75-year-olds (group 2, 75 patients). The two groups were compared as regards demographic features, American Society
of Anesthesiologists scores, comorbidities, previous major surgery, surgical procedure, postoperative mortality, and morbidity.
Results There were no significant differences between the two groups concerning postoperative mortality, and the duration of hospital
stay and days in the postoperative intensive care unit were also similar. Complications such as pancreatic fistulas, wound
infections, and pneumonia were more frequent in the older group, but the differences were not statistically significant. The
overall median survival was 29.4 months and did not differ significantly between the two groups when calculated using the
log-rank test (p = 0.961).
Discussion In the light of these findings and as reported for other series, old age is probably not directly related with any increase
in the rate of postoperative complications, but comorbidities (which are naturally related to the patients’ previous life)
may have a key role in the postoperative course. 相似文献
998.
999.