首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   17233篇
  免费   1115篇
  国内免费   108篇
耳鼻咽喉   145篇
儿科学   565篇
妇产科学   428篇
基础医学   2488篇
口腔科学   309篇
临床医学   1527篇
内科学   4109篇
皮肤病学   504篇
神经病学   1846篇
特种医学   325篇
外科学   1585篇
综合类   54篇
一般理论   8篇
预防医学   1442篇
眼科学   437篇
药学   1279篇
中国医学   52篇
肿瘤学   1353篇
  2024年   19篇
  2023年   199篇
  2022年   431篇
  2021年   965篇
  2020年   461篇
  2019年   693篇
  2018年   777篇
  2017年   476篇
  2016年   538篇
  2015年   629篇
  2014年   814篇
  2013年   1047篇
  2012年   1498篇
  2011年   1518篇
  2010年   916篇
  2009年   680篇
  2008年   1057篇
  2007年   1070篇
  2006年   932篇
  2005年   887篇
  2004年   741篇
  2003年   650篇
  2002年   608篇
  2001年   70篇
  2000年   50篇
  1999年   88篇
  1998年   109篇
  1997年   87篇
  1996年   61篇
  1995年   39篇
  1994年   39篇
  1993年   31篇
  1992年   28篇
  1991年   23篇
  1990年   25篇
  1989年   8篇
  1988年   12篇
  1987年   11篇
  1986年   12篇
  1985年   13篇
  1984年   8篇
  1983年   19篇
  1982年   10篇
  1981年   9篇
  1980年   13篇
  1978年   6篇
  1977年   11篇
  1975年   5篇
  1974年   11篇
  1973年   7篇
排序方式: 共有10000条查询结果,搜索用时 468 毫秒
1.
2.
3.
Breast pseudoaneurysms after a core needle biopsy are a rare complication with a low incidence. However, it is important to be aware of the possibility of complications that require treatment.  相似文献   
4.
5.
Quality of Life Research - The aim of the study was to assess QoL and identify and analyse its determinants in women with endometriosis. The study was performed in 2019 in health centres in Lublin...  相似文献   
6.
This study used the National Survey of Ambulatory Surgery (NSAS) database to measure the incidence of and risk factors for symptoms in the ambulatory surgery center and problems within 24 h after isolated carpal tunnel release (CTR). The NSAS contained records on 400,000 adult patients with carpal tunnel syndrome who were treated with CTR in 2006, based on ICD-9 codes. The type of anesthesia used and factors associated with symptoms and problems were sought in bivariate and multivariable statistical analyses. The mean duration of the procedure was 16 ± 8.8 min. Only 5 % were performed under local anesthesia without sedation, 45 % with IV sedation, 28 % regional anesthesia, and 19 % general anesthesia. Symptoms in the ambulatory surgery center or a problem within 24 h after discharge were recorded in 10 % of patients, all of them minor and transient, including difficulties with pain and its treatment. The strongest risk factors were male sex, age of 45 years and older, and participation of an anesthesiologist. Local anesthesia and regional anesthesia were associated with more perioperative symptoms and postoperative problems. Most CTR are performed with some sedation in the United States. CTR is a safe procedure: one in 10 patients will experience a minor issue in the perioperative or immediate postoperative period.  相似文献   
7.
8.

Objectives

To determine the incidence of incisional hernia (IH) in the extraction incision (EI) in colorectal resection for cancer. To analyze whether the location of the incision has any relationship with the incidence of hernias and whether mesh could be useful for prevention in high-risk patients.

Methods

Retrospective review of the colon and rectal surgery database from January 2015 to December 2016. Data were classified into 2 groups, transverse (TI) and midline incision (MI), and the latter was divided into 2 subgroups (mesh [MIM] and suture [MIS]). Patients were classified using the HERNIAscore. Hernias were diagnosed by clinical and/or CT examination.

Results

A total of 182 out of 210 surgical patients were included. After a median follow-up of 13.0 months, 39 IH (21.9%) were detected, 23 of which (13.4%) were in the EI; their frequency was lower in the TI group (3.4%) and in the MIM group (5.9%) than in the MIS group (29.5%; p = 0.007). The probability of developing IH in the MIS group showed an OR = 11.7 (95%CI: 3.3-42.0) compared to the TI group and 4.3 (IC 95%: 1.1-16.3) versus the MIM group.

Conclusions

The location of the incision is relevant to avoid incisional hernias. Transverse incisions should be used as the first option. When a midline incision is needed, a prophylactic mesh could be considered in high risk patients because it is safe and associated with low morbidity.  相似文献   
9.
10.
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号