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   235532篇
  免费   11664篇
  国内免费   399篇
耳鼻咽喉   3106篇
儿科学   7381篇
妇产科学   4778篇
基础医学   33843篇
口腔科学   5370篇
临床医学   18677篇
内科学   52045篇
皮肤病学   6305篇
神经病学   21042篇
特种医学   7254篇
外国民族医学   102篇
外科学   29327篇
综合类   984篇
一般理论   63篇
预防医学   21339篇
眼科学   4581篇
药学   16556篇
中国医学   701篇
肿瘤学   14141篇
  2023年   1265篇
  2022年   880篇
  2021年   3517篇
  2020年   2098篇
  2019年   3951篇
  2018年   7513篇
  2017年   4952篇
  2016年   4929篇
  2015年   5513篇
  2014年   5751篇
  2013年   9285篇
  2012年   16115篇
  2011年   16075篇
  2010年   7984篇
  2009年   5935篇
  2008年   13827篇
  2007年   14781篇
  2006年   13618篇
  2005年   13486篇
  2004年   12648篇
  2003年   11521篇
  2002年   10937篇
  2001年   6207篇
  2000年   6298篇
  1999年   5568篇
  1998年   920篇
  1997年   763篇
  1996年   716篇
  1992年   3222篇
  1991年   2890篇
  1990年   2768篇
  1989年   2520篇
  1988年   2390篇
  1987年   2207篇
  1986年   2101篇
  1985年   1896篇
  1984年   1415篇
  1983年   1201篇
  1982年   675篇
  1979年   1213篇
  1978年   852篇
  1977年   800篇
  1975年   806篇
  1974年   994篇
  1973年   997篇
  1972年   949篇
  1971年   929篇
  1970年   864篇
  1969年   913篇
  1968年   790篇
排序方式: 共有10000条查询结果,搜索用时 347 毫秒
91.
92.

Aim

The purpose of this study is to find out whether telephone referral from Primary Health Care to Internal Medicine Consult manages to reduce waiting days as compared to traditional referral. This study also aims to know how acceptable is the telephone referral to general practitioners and their patients.

Design

No blind randomized controlled clinical trial.

Setting

Northern Huelva Health District.

Participants

154 patients.

Interventions

Patients referrals from intervention clinicians were sent via telephone consultation, whereas patients referrals from control clinicians were sent by traditional via.

Measurements

Number of days from referral request to Internal Medicine Consult. Number of telephone and traditional referrals. Number of doctors and patients denied. Denial reasons.

Results

A statistically significant difference was found between groups, with an average of 27 (21-34) days. Among General Practitioners, 8 of the first 58 total doctors after randomization and, subsequently, 6 of the 20 doctors of the test group refused to engage in the trial because they considered “excessive time and effort consuming”. 50% of patients referred by the 14 General Practitioners finally randomized to the intervention group were denied referral by telephone due to patient's complexity.

Conclusions

Telephone referral significantly reduces waiting days for Internal Medicine consult. This type of referral did not mean an “excessive time and effort consuming” to General Practitioners and was not all that beneficial to complex patients  相似文献   
93.
94.
95.
IntroductionPeople with Down syndrome (DS) have high respiratory morbidity, evaluating their respiratory health with standardized, objective tests is desirable. Thus, the objective of this study was to evaluate the technical quality of Pulmonary Function Tests (PFTs) to determine which ones are most suitable for this population.MethodsParticipants included children, teenagers and adults with DS, 5 years of age or older (n = 302). The technical quality of the impulse oscillometry system (IOS), forced spirometry, lung-diffusing capacity for carbon monoxide (DLCO), and 6-min walk test (6MWT) were analyzed by age group. Capnography and pulse oximetry were included in the study. Technical quality was determined on the basis of current international PFTs standards.ResultsFifty-one percent of participants were males. A total of 184 participants (71%) who completed the IOS fulfilled the quality criteria, while 210 (70%) completed the 6MWT. Performance on forced spirometry and DLCO was poor. All pulse oximetries and 96% percent heart rates obtained had good quality, but exhaled carbon dioxide (PetCO2) and respiratory rate (RR) showed deficient repeatability.ConclusionsIOS appears to be the most reliable instrument for evaluating lung mechanics in individuals with DS.  相似文献   
96.
97.
98.
99.
100.

Objective

To explore from a gender perspective the association with subjective health of the interaction between education and household arrangements within the framework of social determinants of health placed at the micro and mezzo levels.

Methods

The data comes from the Spanish sample of the European Union Statistics on Income and Living Conditions for 2014. Independent logistic regression models for men and women were run to analyze the association with subjective health of the interaction between education and household arrangements. An additive model was run to assess possible advantages over the interaction approach.

Results

The interaction models show a lower or even no significant effect on health of household arrangements usually negatively associated with health among individuals with high education, displaying specific patterns according to sex.

Conclusions

Health profiles of women and men are more precisely drawn if both social determinants of health are combined. Among the women, the important role was confirmed of both social determinants of health in understanding their health inequalities. Among the men, mainly those with low educational achievement, the interaction revealed that the household was a more meaningful social determinant of health. This could enable the definition of more efficient public policies to reduce health and gender inequalities.  相似文献   
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