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   21310篇
  免费   1308篇
  国内免费   32篇
耳鼻咽喉   226篇
儿科学   765篇
妇产科学   634篇
基础医学   2589篇
口腔科学   197篇
临床医学   3953篇
内科学   3599篇
皮肤病学   352篇
神经病学   1918篇
特种医学   377篇
外科学   1947篇
综合类   167篇
一般理论   34篇
预防医学   2743篇
眼科学   221篇
药学   1349篇
  2篇
中国医学   7篇
肿瘤学   1570篇
  2023年   122篇
  2022年   111篇
  2021年   444篇
  2020年   290篇
  2019年   447篇
  2018年   526篇
  2017年   447篇
  2016年   461篇
  2015年   515篇
  2014年   689篇
  2013年   1020篇
  2012年   1553篇
  2011年   1547篇
  2010年   868篇
  2009年   787篇
  2008年   1433篇
  2007年   1556篇
  2006年   1515篇
  2005年   1417篇
  2004年   1394篇
  2003年   1289篇
  2002年   1192篇
  2001年   192篇
  2000年   139篇
  1999年   194篇
  1998年   252篇
  1997年   207篇
  1996年   197篇
  1995年   171篇
  1994年   168篇
  1993年   123篇
  1992年   99篇
  1991年   98篇
  1990年   95篇
  1989年   73篇
  1988年   95篇
  1987年   78篇
  1986年   88篇
  1985年   76篇
  1984年   66篇
  1983年   45篇
  1982年   68篇
  1981年   73篇
  1980年   62篇
  1979年   40篇
  1978年   37篇
  1977年   32篇
  1976年   24篇
  1974年   25篇
  1973年   24篇
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
1.
BackgroundTotal hip and knee arthroplasties are increasingly performed operations, and routine follow-up places huge demands on orthopedic services. This study investigates the effectiveness, patients’ satisfaction, and cost reduction of Virtual Joint Replacement Clinic (VJRC) follow-up of total hip arthroplasty and total knee arthroplasty patients in a university hospital. VJRC is especially valuable when in-person appointments are not advised or feasible such as during the COVID-19 pandemic.MethodsA total of 1749 patients who were invited for VJRC follow-up for knee or hip arthroplasty from January 2017 to December 2018 were included in this retrospective study. Patients were referred to VJRC after their 6-week postoperative review. Routine VJRC postoperative review was undertaken at 1 and 7 years and then 3-yearly thereafter. We evaluated the VJRC patient response rate, acceptability, and outcome. Patient satisfaction was measured in a subgroup of patients using a satisfaction survey. VJRC costs were calculated compared to face-to-face follow-up.ResultsThe VJRC had a 92.05% overall response rate. Only 7.22% required further in-person appointments with only 3% being reviewed by an orthopedic consultant. VJRC resulted in an estimated saving of £42,644 per year at our institution. The patients’ satisfaction survey showed that 89.29% of the patients were either satisfied or very satisfied with VJRC follow-up.ConclusionVJRC follow-up for hip and knee arthroplasty patients is an effective alternative to in-person clinic assessment which is accepted by patients, has high patient satisfaction, and can reduce the cost to both health services and patients.  相似文献   
2.
3.
4.
5.
6.
Since the 1990s, oral rabies vaccination (ORV) has been used successfully to halt the westward spread of the raccoon rabies virus (RV) variant from the eastern continental USA. Elimination of raccoon RV from the eastern USA has proven challenging across targeted raccoon (Procyon lotor) and striped skunk (Mephitis mephitis) populations impacted by raccoon RV. Field trial evaluations of the Ontario Rabies Vaccine Bait (ONRAB) were initiated to expand ORV products available to meet the rabies management goal of raccoon RV elimination. This study describes the continuation of a 2011 trial in West Virginia. Our objective was to evaluate raccoon and skunk response to ORV occurring in West Virginia for an additional two years (2012–2013) at 75 baits/km2 followed by three years (2014–2016) of evaluation at 300 baits/km2. We measured the change in rabies virus-neutralizing antibody (RVNA) seroprevalence in targeted wildlife populations by comparing levels pre- and post-ORV during each year of study. The increase in bait density from 75/km2 to 300/km2 corresponded to an increase in average post-ORV seroprevalence for raccoon and skunk populations. Raccoon population RVNA levels increased from 53% (300/565, 95% CI: 50–57%) to 82.0% (596/727, 95% CI: 79–85%) during this study, and skunk population RVNA levels increased from 11% (8/72, 95% CI: 6–20%) to 39% (51/130, 95% CI: 31–48%). The RVNA seroprevalence pre-ORV demonstrated an increasing trend across study years for both bait densities and species, indicating that multiple years of ORV may be necessary to achieve and maintain RVNA seroprevalence in target wildlife populations for the control and elimination of raccoon RV in the eastern USA.  相似文献   
7.
8.
Maternal and Child Health Journal - Background Prenatal substance use screening is recommended. The 4 P’s Plus screener includes questions on perceived problematic substance use in parents...  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