全文获取类型
收费全文 | 5741篇 |
免费 | 326篇 |
国内免费 | 56篇 |
专业分类
耳鼻咽喉 | 42篇 |
儿科学 | 117篇 |
妇产科学 | 31篇 |
基础医学 | 655篇 |
口腔科学 | 142篇 |
临床医学 | 379篇 |
内科学 | 1368篇 |
皮肤病学 | 105篇 |
神经病学 | 454篇 |
特种医学 | 163篇 |
外科学 | 1182篇 |
综合类 | 25篇 |
预防医学 | 138篇 |
眼科学 | 51篇 |
药学 | 363篇 |
中国医学 | 16篇 |
肿瘤学 | 892篇 |
出版年
2024年 | 12篇 |
2023年 | 76篇 |
2022年 | 156篇 |
2021年 | 262篇 |
2020年 | 141篇 |
2019年 | 200篇 |
2018年 | 222篇 |
2017年 | 130篇 |
2016年 | 171篇 |
2015年 | 151篇 |
2014年 | 196篇 |
2013年 | 236篇 |
2012年 | 373篇 |
2011年 | 388篇 |
2010年 | 205篇 |
2009年 | 167篇 |
2008年 | 245篇 |
2007年 | 292篇 |
2006年 | 258篇 |
2005年 | 264篇 |
2004年 | 226篇 |
2003年 | 207篇 |
2002年 | 223篇 |
2001年 | 120篇 |
2000年 | 109篇 |
1999年 | 132篇 |
1998年 | 59篇 |
1997年 | 48篇 |
1996年 | 38篇 |
1995年 | 24篇 |
1994年 | 33篇 |
1993年 | 25篇 |
1992年 | 67篇 |
1991年 | 80篇 |
1990年 | 69篇 |
1989年 | 83篇 |
1988年 | 73篇 |
1987年 | 45篇 |
1986年 | 43篇 |
1985年 | 40篇 |
1984年 | 27篇 |
1983年 | 26篇 |
1982年 | 21篇 |
1980年 | 15篇 |
1979年 | 29篇 |
1978年 | 19篇 |
1977年 | 15篇 |
1974年 | 10篇 |
1972年 | 10篇 |
1971年 | 8篇 |
排序方式: 共有6123条查询结果,搜索用时 31 毫秒
101.
Akihiro Endo Yusuke Morita Yu Yasuda Hiroshi Kawahara Yuzo Kagawa Kazuaki Tanabe 《Internal medicine (Tokyo, Japan)》2022,61(8):1163
A 54-year-old man was admitted to our hospital due to intermittent chest pain. He had a history of acute myocardial infarction, and peri-stent contrast staining had been observed at the stent implantation site. The patient previously underwent anticoagulation therapy for left ventricular thrombus and antiplatelet therapy to prevent stent thrombosis. More than one year after implantation of a drug-eluting stent, antiplatelet drugs were discontinued, and anticoagulant alone was prescribed according to the guidelines, which resulted in very late stent thrombosis. The risks of both bleeding and thrombosis must be fully considered when deciding whether or not to discontinue antiplatelet therapy during anticoagulation therapy. 相似文献
102.
Yosuke Ando Takahiro Hayashi Kaori Ito Eri Suzuki Naoyuki Mine Ayumi Miyamoto Miyuki Oya Hidezo Matsuda Ami Isaji Toru Nakanishi Kazuyoshi Imaizumi Tomoyuki Shibata Tatsuyoshi Okada Kazuo Sakurai Kensei Naito Ichiro Uyama Kenji Kawada Hiroshi Takahashi Shigeki Yamada 《Supportive care in cancer》2016,24(2):871-878
103.
Postoperative bleeding risk after gastric endoscopic submucosal dissection during antithrombotic drug therapy
下载免费PDF全文
![点击此处可从《Journal of gastroenterology and hepatology》网站下载免费的PDF全文](/ch/ext_images/free.gif)
104.
Haruka Uezono Kayoko Tsujino Keno Moriki Fumiko Nagano Yosuke Ota Ryohei Sasaki Toshinori Soejima 《Journal of radiation research》2013,54(6):1102-1109
The purpose of this study is to determine the incidence, clinical characteristics and risk factors of postradiation pelvic insufficiency fracture (PIF) in women with uterine cervical cancer. We reviewed the medical records of 126 patients who received definitive radiotherapy (RT) for uterine cervical cancer between 2003 and 2009 at our institution. Among them, 99 patients who underwent at least one computed tomography (CT) or magnetic resonance imaging of the pelvis during their follow-up at more than 6 months were included in this analysis. The relationship between the incidence of PIF and several patient- and treatment-related factors was analyzed. The median follow-up period was 21 months. Of the 126 patients, 33 (with a total of 50 lesions) were diagnosed with PIF. The 2-year cumulative incidence was 32%. Univariate analysis showed that age ≥70 years (P= 0.0010), postmenopausal state (P = 0.0013), and lower CT density of bone and bone marrow (P= 0.020) significantly related to PIF. In a multivariate analysis, of the 59 patients whose CT densities were evaluable, lower CT density was the only significant factor associated with PIF (P = 0.0026). In conclusion, postradiation PIFs were detected in a considerable number of patients after definitive RT for cervical cancer. Predisposing factors were older age, postmenopausal state, and decreased density of bone and bone marrow on CT. 相似文献
105.
106.
107.
108.
109.
Kengo Takimoto Tomohiro Ueda Fukutaro Shimamoto Yusuke Kojima Yosuke Fujinaga Atufumi Kashiwa Hiroaki Yamauchi Kiichi Matsuyama Takashi Toyonaga Toshikazu Yoshikawa 《Digestive endoscopy》2011,23(2):176-181
Aim: Although the treatment of early gastric cancer with endoscopic submucosal dissection (ESD) has been widely carried out, a standardized method of sedation for ESD has not been established. The purpose of the present study was to evaluate the efficacy and safety of sedation with dexmedetomidine (DEX). Methods: We conducted a randomized study involving 90 patients with gastric tumors who were intended to be treated with ESD. The patients were sedated either with DEX (i.v. infusion of 3.0 µg/kg per h over 5 min followed by continuous infusion at 0.4 µg/kg per h [n = 30]), propofol (PF [n = 30]), or midazolam (MDZ [n = 30]). In all groups, 1 mg MDZ was added i.v. as needed. Results: En bloc resection of the gastric tumor was achieved in 88 (98%) patients. None of the DEX‐sedated patients showed a significant reduction of the oxygen saturation level. The percentage of patients who showed body movement in the DEX group was significantly lower than those in the PF and MDZ groups, and the mean dose of additional MDZ in the DEX group was significantly smaller than that in the MDZ group. The rate of effective sedation was significantly higher in the DEX group compared with the MDZ or PF group. The mean length of ESD in the DEX group was 65 min, which was significantly shorter than in the other two groups. No DEX‐sedated patient developed major surgical complications. Conclusions: Sedation with DEX is effective and safe for patients with gastric tumors who are undergoing ESD. 相似文献
110.