全文获取类型
收费全文 | 6448篇 |
免费 | 282篇 |
国内免费 | 80篇 |
专业分类
耳鼻咽喉 | 31篇 |
儿科学 | 167篇 |
妇产科学 | 65篇 |
基础医学 | 602篇 |
口腔科学 | 80篇 |
临床医学 | 488篇 |
内科学 | 2101篇 |
皮肤病学 | 89篇 |
神经病学 | 351篇 |
特种医学 | 289篇 |
外科学 | 1197篇 |
综合类 | 23篇 |
预防医学 | 116篇 |
眼科学 | 61篇 |
药学 | 325篇 |
中国医学 | 19篇 |
肿瘤学 | 806篇 |
出版年
2023年 | 30篇 |
2022年 | 76篇 |
2021年 | 148篇 |
2020年 | 88篇 |
2019年 | 110篇 |
2018年 | 161篇 |
2017年 | 122篇 |
2016年 | 127篇 |
2015年 | 163篇 |
2014年 | 210篇 |
2013年 | 243篇 |
2012年 | 433篇 |
2011年 | 412篇 |
2010年 | 272篇 |
2009年 | 196篇 |
2008年 | 380篇 |
2007年 | 453篇 |
2006年 | 396篇 |
2005年 | 426篇 |
2004年 | 435篇 |
2003年 | 431篇 |
2002年 | 399篇 |
2001年 | 88篇 |
2000年 | 93篇 |
1999年 | 98篇 |
1998年 | 88篇 |
1997年 | 91篇 |
1996年 | 66篇 |
1995年 | 51篇 |
1994年 | 53篇 |
1993年 | 46篇 |
1992年 | 42篇 |
1991年 | 41篇 |
1990年 | 37篇 |
1989年 | 39篇 |
1988年 | 33篇 |
1987年 | 47篇 |
1986年 | 21篇 |
1985年 | 21篇 |
1984年 | 20篇 |
1983年 | 12篇 |
1982年 | 10篇 |
1981年 | 11篇 |
1980年 | 12篇 |
1979年 | 9篇 |
1978年 | 8篇 |
1977年 | 7篇 |
1975年 | 10篇 |
1974年 | 6篇 |
1968年 | 7篇 |
排序方式: 共有6810条查询结果,搜索用时 656 毫秒
81.
82.
83.
Oncological benefit of complete metastasectomy for simultaneous colorectal liver and lung metastases
84.
Shota Hamada Shiro Hinotsu Katsuhito Hori Hiroshi Furuse Takehiro Oikawa Junichi Kawakami Seiichiro Ozono Hideyuki Akaza Koji Kawakami 《Supportive care in cancer》2012,20(4):813-820
Purpose
The objective of this study was to estimate the cost of antiemetic therapy for chemotherapy-induced nausea and vomiting (CINV) in daily practice in Japan. 相似文献85.
Diagnostic efficacy of liquid‐based cytology for solid pancreatic lesion samples obtained with endoscopic ultrasound‐guided fine‐needle aspiration: Propensity score‐matched analysis
下载免费PDF全文
![点击此处可从《Digestive endoscopy》网站下载免费的PDF全文](/ch/ext_images/free.gif)
86.
87.
88.
Akiko Danjo Kanako Yamaguchi Kazuma Fujimoto Toshihito Saitoh Masahiko Inamori Takashi Ando Tomohiko Shimatani Kyoichi Adachi Fukunori Kinjo Shiko Kuribayashi Shoji Mitsufuji Yasuhiro Fujiwara Shigeki Koyama Junichi Akiyama Atsushi Takagi Noriaki Manabe Hiroto Miwa Yasuyuki Shimoyama Motoyasu Kusano 《Journal of gastroenterology and hepatology》2009,24(4):633-638
Background and Aim: We compared endoscopic findings of the frequency scale for the symptoms of gastroesophageal reflux disease (FSSG), a written questionnaire developed in Japan, to that for the questionnaire for the diagnosis of reflux esophagitis (QUEST) for the diagnosis of reflux esophagitis. Methods: We registered 475 patients with untreated symptoms of upper abdominal pain (male/female: 252/223, average age 52.4 ± 17.8 years). Subjects were assessed first with the FSSG and QUEST questionnaires, then by endoscopy, before allocation to a gastric ulcer (GU), duodenal ulcer (DU), gastroesophageal reflux disease (GERD) or functional dyspepsia (FD) group. Results: On the basis of the endoscopic findings the diagnoses for the 475 subjects were as follows: FD 52.2%, DU 7.6%, GU 7.8%, and GERD 32.4% (Grade M 10.1%, Grade A + B 20.2%, Grade C + D 2.3%). There was no difference between the FSSG and QUEST in sensitivity, specificity or accuracy for any condition. The FSSG score rose with increasing endoscopic severity of GERD, but there was no correlation between the QUEST score and endoscopic severity. The FSSG total score was inferior to QUEST in terms of distinguishing GERD from other conditions, but when only the questions relating to reflux symptoms were used, the FSSG was able to distinguish GERD from other conditions as well as QUEST. Conclusions: The FSSG score reflects the severity of the endoscopic findings of GERD. 相似文献
89.
Torahiko Takeda Hiroki Tohma Junichi Yoshida Gen Naritomi Hiroyuki Konomi Zhou-Lu Deng Naoko Kinukawa Masao Tanaka 《Journal of gastroenterology》1998,33(6):860-863
The relationship between sphincter of Oddi pressure and the morphological structure of the sphincter was studied in eight
dogs prepared with a duodenal cannula. Sphincter of Oddi manometry was performed in awake animals in three directions, ventral,
left dorsal, and right dorsal, using a catheter with three radial side holes for recording at one level. The pressure in the
ventral direction (26.6 ± 1.06 mmHg) (mean ± SEM) was significantly lower than that in the left and right dorsal directions
(30.6 ± 1.42 and 31.2 ± 1.23 mmHg, respectively). This functional manometric difference in the three directions correlated
closely with the morphological structure of the sphincter of Oddi; the sum of the thickness of the sphincter of Oddi muscle
and duodenal proper muscle was greater on the dorsal than on the ventral side. To our knowledge, this is the first report
of axial asymmetry in sphincter of Oddi pressure.
(Received May 27, 1997; accepted April 24, 1998) 相似文献
90.
An 83-year-old woman was transferred to our hospital because of pacing failure and suspected ventricular perforation by a permanent pacing lead. She had undergone permanent pacemaker implantation 5 months previously. Chest radiography showed the pacing lead running out of the cardiac shadow. Computed tomography and echocardiography confirmed the diagnosis of ventricular perforation by the pacing lead. No evidence of cardiac tamponade was found. The lead was surgically removed through a median sternotomy. Intraoperatively, the lead was found perforating the ventricle and the pericardium, and reaching into the left pleural cavity but not injuring the left lung. A pacing lead may potentially injure the heart or the lung. Regular check-up of lead position and pacing status is recommended. 相似文献