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   18168篇
  免费   5496篇
  国内免费   49篇
耳鼻咽喉   530篇
儿科学   540篇
妇产科学   681篇
基础医学   284篇
口腔科学   1109篇
临床医学   3603篇
内科学   6650篇
皮肤病学   444篇
神经病学   840篇
特种医学   320篇
外科学   1933篇
综合类   26篇
现状与发展   2篇
一般理论   1篇
预防医学   3450篇
眼科学   235篇
药学   355篇
中国医学   11篇
肿瘤学   2699篇
  2024年   199篇
  2023年   1189篇
  2022年   475篇
  2021年   769篇
  2020年   1234篇
  2019年   456篇
  2018年   1167篇
  2017年   1214篇
  2016年   1467篇
  2015年   1396篇
  2014年   2002篇
  2013年   2193篇
  2012年   740篇
  2011年   696篇
  2010年   1151篇
  2009年   1563篇
  2008年   667篇
  2007年   448篇
  2006年   757篇
  2005年   355篇
  2004年   290篇
  2003年   207篇
  2002年   174篇
  2001年   274篇
  2000年   233篇
  1999年   249篇
  1998年   331篇
  1997年   255篇
  1996年   240篇
  1995年   197篇
  1994年   156篇
  1993年   113篇
  1992年   113篇
  1991年   91篇
  1990年   108篇
  1989年   86篇
  1988年   67篇
  1987年   50篇
  1986年   58篇
  1985年   45篇
  1984年   43篇
  1983年   40篇
  1982年   15篇
  1980年   16篇
  1979年   10篇
  1978年   14篇
  1977年   18篇
  1976年   11篇
  1975年   18篇
  1972年   15篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
81.
82.
83.
84.
The prevalence of behavioral health problems is higher for low-income individuals, yet this population is less likely to receive behavioral health treatment. Community health centers have their advantages as behavioral health-care providers because they serve a majority low-income population and are located in medically underserved areas. Their role in providing behavioral health care is expected to expand under health reform as they are expected to double their patient capacity, and due to increased insurance coverage for individuals with behavioral health problems. However, the ability of community health centers to provide behavioral health care is compromised by provider shortages and funding shortfalls.  相似文献   
85.
Objective To describe the content of newspaper articles about cervical cancer and the human papillomavirus (HPV) vaccine published in Appalachia and identify potential differences in coverage as compared to the content of newspaper articles published in non‐Appalachia Ohio. Background Individuals rely on media as an important source of health information. Inadequate coverage of health issues may reinforce health inequities such as the elevated cervical cancer incidence and mortality rates in Appalachia Ohio. Methods A content analysis was conducted of all newspaper articles about cervical cancer and the HPV vaccine published in Appalachia and non‐Appalachia Ohio during 2006. Findings A total of 121 published newspaper articles (42 in Appalachia and 79 in non‐Appalachia) about cervical cancer and the HPV vaccine were identified. Articles published in Appalachia Ohio were significantly less likely than articles published in non‐Appalachia Ohio to provide information about the threat of cervical cancer and the efficacy of the HPV vaccine. Specifically, few articles published in Appalachia included information about the ability of the vaccine to prevent cervical cancer, the cost of the vaccine and the availability of assistance programmes for the un‐ and underinsured. Conclusions Newspaper articles printed in the Appalachia region lacked vital information that could help promote uptake of the HPV vaccine. Health educators and healthcare providers should be aware that women from underserved geographic regions like Appalachia may have greater information needs regarding their risk of cervical cancer and the potential benefits of the HPV vaccine as compared to the general patient population.  相似文献   
86.
The elimination of measles and rubella by 2015 is an important goal set by the World Health Organization European Region (WHO/Europa). Since 1991, the incidence of measles in WHO/Europa declined owing to routine childhood vaccination and supplementary immunization activities in the region. However, in many countries of Western Europe elimination of measles and rubella remains a challenge, and every year there are outbreaks with partly long-lasting transmission chains and dissemination of the virus internationally. In Germany, outbreaks occur because of the high proportion of susceptible individuals in specific population groups. In 2011, over 1,600 cases were reported (19.7 per 1,000,000 inhabitants, data from the Robert Koch Institute) whereas in 2012 only 167 cases were reported to the Robert Koch Institute (2 per 1,000,000 inhabitants). It is unclear whether the declining trend will continue in the following years due to improved vaccination coverage or whether number of cases will rise again because of the accumulation of susceptible groups. In Germany, there are currently no representative, country-wide data on rubella; however, data from the eastern federal states provide important epidemiological insights. Outbreaks are seldom reported, but statutory notification of rubella and congenital rubella syndrome was implemented in March 2013. As a result, it will be possible to better assess the epidemiology of rubella in Germany, although a considerable underreporting of rubella cases is anticipated.  相似文献   
87.
88.
89.
90.
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