全文获取类型
收费全文 | 20581篇 |
免费 | 1372篇 |
国内免费 | 240篇 |
专业分类
耳鼻咽喉 | 478篇 |
儿科学 | 448篇 |
妇产科学 | 291篇 |
基础医学 | 3100篇 |
口腔科学 | 491篇 |
临床医学 | 1594篇 |
内科学 | 4189篇 |
皮肤病学 | 676篇 |
神经病学 | 1363篇 |
特种医学 | 1311篇 |
外科学 | 3153篇 |
综合类 | 141篇 |
现状与发展 | 1篇 |
一般理论 | 2篇 |
预防医学 | 879篇 |
眼科学 | 635篇 |
药学 | 1500篇 |
中国医学 | 223篇 |
肿瘤学 | 1718篇 |
出版年
2024年 | 15篇 |
2023年 | 111篇 |
2022年 | 320篇 |
2021年 | 738篇 |
2020年 | 390篇 |
2019年 | 536篇 |
2018年 | 687篇 |
2017年 | 521篇 |
2016年 | 761篇 |
2015年 | 1019篇 |
2014年 | 1191篇 |
2013年 | 1310篇 |
2012年 | 1874篇 |
2011年 | 1707篇 |
2010年 | 1088篇 |
2009年 | 810篇 |
2008年 | 1220篇 |
2007年 | 1171篇 |
2006年 | 1091篇 |
2005年 | 966篇 |
2004年 | 791篇 |
2003年 | 680篇 |
2002年 | 631篇 |
2001年 | 369篇 |
2000年 | 311篇 |
1999年 | 252篇 |
1998年 | 115篇 |
1997年 | 87篇 |
1996年 | 71篇 |
1995年 | 63篇 |
1994年 | 58篇 |
1993年 | 53篇 |
1992年 | 119篇 |
1991年 | 142篇 |
1990年 | 101篇 |
1989年 | 91篇 |
1988年 | 87篇 |
1987年 | 113篇 |
1986年 | 77篇 |
1985年 | 73篇 |
1984年 | 41篇 |
1983年 | 38篇 |
1982年 | 32篇 |
1981年 | 27篇 |
1980年 | 20篇 |
1979年 | 35篇 |
1978年 | 40篇 |
1976年 | 13篇 |
1974年 | 16篇 |
1973年 | 12篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
Hyun Jong Choi Jong Ho Moon Yun Nah Lee Hyun Su Kim Ji Su Ha Tae Hoon Lee Sang‐Woo Cha Young Deok Cho Sang‐Heum Park 《Digestive endoscopy》2015,27(7):772-775
Direct peroral cholangioscopy (POC) using an ultra‐slim upper endoscope is one modality of POC for intraductal endoscopic evaluation and treatment of the bile duct. Choledochoduodenostomy (CDS) is one modality of biliary bypass surgery that provides a new route to the bile duct. We carried out direct POC using an ultra‐slim upper endoscope without the use of accessories in 10 patients (four sump syndromes, three bile duct strictures and three intrahepatic duct stones) previously undergoing surgical CDS. Direct POC was successful in all patients. The use of an intraductal balloon catheter was required in one patient for advancement of the endoscope into the bile duct. Distal bile ducts with sump syndromes were cleared using baskets and water irrigation under direct POC. Cholangiocarcinoma was diagnosed in one patient with hilar bile duct stricture after cholangioscopic evaluation and a targeting forceps biopsy under direct POC. Intrahepatic duct stones were successfully extracted after intraductal fragmentation under direct POC. Oozing bleeding occurred during intraductal lithotripsy but stopped spontaneously. Direct POC using an ultra‐slim upper endoscope without the assistance of accessories can easily be carried out in patients undergoing CDS. 相似文献
2.
3.
4.
AbstractWe have investigated communication preferences of mammography results in 90 patients through a structured interview approach. About 81% of patients expressed that they wanted to get the results, and 18% expressed that getting the results does not help if they are incomprehensible. In patients who want to get the results, 80% preferred face-to-face interaction with physicians, whereas the others preferred other modes of communication to prevent loss of time. Majority of patients infavor of face-to-face interaction (57%) preferred both the referring physician and the radiologist. Comprehensibility and fast delivery of reports, plus direct communication with radiologists are the requirements in mammography patients while implementing patient-centered radiology. 相似文献
5.
6.
7.
8.
PNPLA3 gene polymorphism and response to lifestyle modification in patients with nonalcoholic fatty liver disease
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)
9.
W. Do T. Elzerman R. de Bree A. Rosenberg T. Forouzanfar E.M. Van Cann 《International journal of oral and maxillofacial surgery》2021,50(5):591-597
The aim of this study was to analyse the effect of body mass index (BMI), both low and high values, on the perioperative complication rate in patients with oral squamous cell carcinoma (OSCC). The medical records of 259 patients operated between 2014 and 2017 for OSCC were reviewed. Univariate and multivariate analyses were performed. Sixty of the 259 patients developed 87 complications. Low or high BMI was not associated with the perioperative complication rate. A longer operating time and increased blood loss were associated with a higher perioperative complication rate and higher Clavien–Dindo grade. Low BMI, American Society of Anesthesiologists score 2 and 3, a longer operating time, and increased blood loss were associated with a longer hospital stay. Low BMI was associated with a longer hospital stay. Neither low nor high BMI was associated with the perioperative complication rate. A longer operating time and increased blood loss were associated with a higher perioperative complication rate and higher Clavien–Dindo grade. 相似文献
10.