全文获取类型
收费全文 | 12118篇 |
免费 | 594篇 |
国内免费 | 68篇 |
专业分类
耳鼻咽喉 | 112篇 |
儿科学 | 233篇 |
妇产科学 | 146篇 |
基础医学 | 1497篇 |
口腔科学 | 284篇 |
临床医学 | 690篇 |
内科学 | 2804篇 |
皮肤病学 | 141篇 |
神经病学 | 1114篇 |
特种医学 | 588篇 |
外科学 | 2579篇 |
综合类 | 57篇 |
预防医学 | 344篇 |
眼科学 | 134篇 |
药学 | 840篇 |
中国医学 | 34篇 |
肿瘤学 | 1183篇 |
出版年
2023年 | 63篇 |
2022年 | 124篇 |
2021年 | 297篇 |
2020年 | 148篇 |
2019年 | 225篇 |
2018年 | 283篇 |
2017年 | 245篇 |
2016年 | 253篇 |
2015年 | 284篇 |
2014年 | 367篇 |
2013年 | 457篇 |
2012年 | 631篇 |
2011年 | 730篇 |
2010年 | 418篇 |
2009年 | 372篇 |
2008年 | 605篇 |
2007年 | 700篇 |
2006年 | 689篇 |
2005年 | 657篇 |
2004年 | 713篇 |
2003年 | 672篇 |
2002年 | 688篇 |
2001年 | 282篇 |
2000年 | 281篇 |
1999年 | 265篇 |
1998年 | 165篇 |
1997年 | 126篇 |
1996年 | 140篇 |
1995年 | 104篇 |
1994年 | 110篇 |
1993年 | 73篇 |
1992年 | 173篇 |
1991年 | 138篇 |
1990年 | 143篇 |
1989年 | 130篇 |
1988年 | 109篇 |
1987年 | 89篇 |
1986年 | 80篇 |
1985年 | 92篇 |
1984年 | 70篇 |
1983年 | 60篇 |
1982年 | 31篇 |
1981年 | 29篇 |
1980年 | 28篇 |
1979年 | 54篇 |
1978年 | 28篇 |
1977年 | 38篇 |
1975年 | 29篇 |
1974年 | 51篇 |
1973年 | 36篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
Masaru Sasaki Tsuyoshi Takahashi Soichiro Funaki Koji Tanaka Yasuhiro Miyazaki Naoko Ose Tomoki Makino Yukinori Kurokawa Makoto Yamasaki Kiyokazu Nakajima Yasushi Shintani Masaki Mori Yuichiro Doki 《Asian journal of endoscopic surgery》2021,14(1):116-119
We report a case of a diaphragmatic hernia after a heart transplant operation. A 43-year-old woman, who underwent orthotropic heart transplantation for hypertrophic cadiomyopathy two year earlier, presented with vomiting and epigastric pain. A computed tomography scan showed that the stomach and transverse colon were dislocated in the left thoracic cavity. We diagnosed left diaphragmatic hernia incarceration and performed laparoscopic repair of the diaphragmatic hernia. A 12 × 8 cm diaphragmatic defect was found intraoperatively on the ventrolateral aspect of the left diaphragm, and the stomach with volvulus had herniated into the thorax through the defect. The hernia was considered to be iatrogenic. The diaphragmatic defect was large, and the diaphragm was thinning. We closed the defect by mesh repair. Laparoscopic mesh repair of the diaphragmatic hernia could be performed safely and with minimal invasiveness. 相似文献
2.
3.
Hiroto Kinoshita Hitomi Nishioka Aya Ikeda Kyoko Ikoma Yoichi Sameshima Hidehisa Ohi Mizuki Tatsuno Junka Kouyama Chiaki Kawamoto Tomohiro Mitsui Yuko Tamura Yu Hashimoto Masashi Nishio Tsuyoshi Ogashiwa Yusuke Saigusa Shin Maeda Hideaki Kimura Reiko Kunisaki Kazuhiko Koike 《Journal of gastroenterology and hepatology》2019,34(11):1929-1939
4.
5.
Ichiro Yasuda Takuji Iwashita Takaya Ohnishi Tsuyoshi Mukai Masamichi Enya Eiichi Tomita Hisataka Moriwaki 《Digestive endoscopy》2006,18(Z1):S92-S95
Endoscopic nasobiliary drainage (ENBD) is a well established mode of biliary decompression. Although ENBD is certainly an uncomfortable procedure with the potential risk of spontaneous dislocation or removal of the drainage catheter by disoriented patients, it has several advantages over endoscopic biliary drainage (EBD) using an indwelling stent. The current indications for ENBD are: (i) temporary drainage to treat obstructive jaundice and cholangitis caused by malignant or benign biliary stricture; (ii) urgent drainage to treat suppurative cholangitis primarily caused by common bile duct stones; (iii) temporary drainage after stone removal in patients with suspected incomplete clearance and/or with cholangitis; and (iv) biliary leaks that occur primarily after surgery, as well as other indications. Different types of nasobiliary catheters are currently available that have been designed with various diameters, shapes, and materials. However, the current catheters are not considered by most endoscopists to be sufficient. Further improvements are needed to achieve better drainage and better maneuverability. 相似文献
6.
E Nakano T Yoshioka M Matsuda T Sonoda H Yano Y Ihara H Kuroda T Kishimoto T Sakurai K Uchida 《Hinyokika kiyo. Acta urologica Japonica》1990,36(5):635-642
Clinical effect of LM-001, a prostaglandin synthetic inhibitor developed from a drug delivery system, was evaluated in 54 patients with pain from urinary tract stones (stone pain) and 32 with vesical urgency after an operation on bladder or prostate. LM-001, felbinac ethyl incorporated in lipid microsphere, wes intravenously administered at the onset of stone pain or vesical urgency. Of 54 with stones and 32 with urgency, 53 and 29 were eligible for response, respectively. The symptoms improved or disappeared in some cases just after the administration and in the majority of patients within 15 minutes, in 49 of 53 patients with stone pain. Further, the effectiveness lasted over 24 hours in 26 of the 49 responding to this agent. On one hand, improvement or disappearance of vesical urgency was recognized in 25 of 29 patients, and the effectiveness was observed shortly after injection in 16 and lasted over 24 hours in 13 cases. Toxicities of this drug were investigated in 54 patients with stone pain and 32 with urinary urgency. Side effects consisted of pain at the injection site in 4, a slight fall of blood pressure in 1, slight visual disturbance in 1, body heat sensation in 1, leukocytosis in 3 and elevation of alkaline phosphatase in 1. These symptoms were transient and disappeared without use of any agent. LM-001 is concluded to be a useful drug for controlling stone pain and vesical urgency since an immediate effect, long durability and high response rates were obtained without severe side 相似文献
7.
Y Miyasaka M Sakurai A T Yokobori S Kuroda M Ohyama 《Bio-medical materials and engineering》1991,1(1):3-10
Long bone injuries in clinical cases are studied by comparison of roentgenograms with a rational mechanical analysis of the injuries. Fractures produced by torsional loads have a spiral shape with a smooth and even surface. Fractures induced by bending loads have uneven and rugged fracture surfaces perpendicular to the bone axis. Long bones are weak in torsion but strong in tensile stress produced by bending. This result corresponds to the clinical fact that a large direct external force is needed to produce a transverse fracture while a spiral fracture is produced by a relatively small torque. 相似文献
8.
Y. Kuroda H. Takashima A. Ikeda C. Endo R. Neshige R. Kakigi H. Shibasaki 《Journal of neurology》1991,238(6):309-314
Summary Fourteen patients with HTLV-1-associated myelopathy were treated with high-dose intravenous gammaglobulin (IVGG). Ten received 10 g/day of IVGG and 4 received 400 mg/kg of body-weight/day of IVGG for 5 consecutive days. Improvement of spastic paraparesis was observed in 10 within 7 days of the commencement of IVGG. The therapeutic effects were sustained for more than 3 weeks in some patients. There were no side effects. Analysis of factors of relevance to the clinical improvement with IVGG showed that the beneficial response was preferentially found in patients having a high CSF titre of anti-HTLV-I antibodies, a high CSF IgG level and a marked brain MRI abnormality. 相似文献
9.
10.
Kentaroh Miyoshi Minoru Naito Tsuyoshi Ueno Shinji Hato Hideo Ino 《General thoracic and cardiovascular surgery》2009,57(11):629-632
A benign esophageal leiomyoma with abnormally increased fluorine-18-fluorodeoxyglucose uptake on positron emission tomography
(PET) was resected thoracoscopically. The tumor, of which the maximum standardized uptake value of the lesion was 4.7, was
well defined and 38 mm in diameter. Neither mitotic activity nor degeneration was found histologically; and immunoreactivity
for CD34, CD117, MIB-1, and glucose transporter-1 was negative immunohistochemically. A diagnosis of gastrointestinal stromal
tumor was ruled out by an oncogenic kinase gene mutation study. This case cautions against PET-dependent evaluation for malignant
potential of esophageal submucosal tumors. 相似文献