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   2395853篇
  免费   190521篇
  国内免费   4704篇
耳鼻咽喉   33419篇
儿科学   80822篇
妇产科学   67535篇
基础医学   341158篇
口腔科学   65205篇
临床医学   215898篇
内科学   473981篇
皮肤病学   53840篇
神经病学   194271篇
特种医学   93191篇
外国民族医学   1108篇
外科学   362312篇
综合类   54574篇
现状与发展   4篇
一般理论   819篇
预防医学   188350篇
眼科学   54353篇
药学   173809篇
  3篇
中国医学   5064篇
肿瘤学   131362篇
  2019年   18703篇
  2018年   26546篇
  2017年   20126篇
  2016年   22494篇
  2015年   25210篇
  2014年   35604篇
  2013年   53691篇
  2012年   73325篇
  2011年   77730篇
  2010年   46093篇
  2009年   43782篇
  2008年   72846篇
  2007年   77459篇
  2006年   78075篇
  2005年   75894篇
  2004年   73324篇
  2003年   70168篇
  2002年   68419篇
  2001年   117236篇
  2000年   120765篇
  1999年   101597篇
  1998年   28537篇
  1997年   25730篇
  1996年   26100篇
  1995年   24791篇
  1994年   22872篇
  1993年   21392篇
  1992年   78558篇
  1991年   75863篇
  1990年   73263篇
  1989年   69854篇
  1988年   64332篇
  1987年   63004篇
  1986年   58898篇
  1985年   56315篇
  1984年   42762篇
  1983年   36052篇
  1982年   21554篇
  1981年   19380篇
  1979年   38122篇
  1978年   26776篇
  1977年   22418篇
  1976年   21110篇
  1975年   22312篇
  1974年   26454篇
  1973年   25533篇
  1972年   23686篇
  1971年   21482篇
  1970年   20387篇
  1969年   18653篇
排序方式: 共有10000条查询结果,搜索用时 328 毫秒
1.
Molnár  B.  Aroca  S.  Dobos  A.  Orbán  K.  Szabó  J.  Windisch  P.  Stähli  A.  Sculean  A. 《Clinical oral investigations》2022,26(12):7135-7142
Clinical Oral Investigations - To evaluate t he long-term outcomes following treatment of RT 1 multiple adjacent gingival recessions (MAGR) using the modified coronally advanced tunnel (MCAT) with...  相似文献   
2.
3.

The exercise pressor reflex is a feedback mechanism engaged upon stimulation of mechano- and metabosensitive skeletal muscle afferents. Activation of these afferents elicits a reflex increase in heart rate, blood pressure, and ventilation in an intensity-dependent manner. Consequently, the exercise pressor reflex has been postulated to be one of the principal mediators of the cardiorespiratory responses to exercise. In this updated review, we will discuss classical and recent advancements in our understating of the exercise pressor reflex function in both human and animal models. Particular attention will be paid to the afferent mechanisms and pathways involved during its activation, its effects on different target organs, its potential role in the abnormal cardiovascular response to exercise in diseased states, and the impact of age and biological sex on these responses. Finally, we will highlight some unanswered questions in the literature that may inspire future investigations in the field.

  相似文献   
4.
5.
The coronavirus disease 2019 (COVID-19) pandemic has rapidly created widespread impacts on global health and the economy. Data suggest that women are less susceptible to severe illness. However, sex-disaggregated data are incomplete, leaving room for misinterpretation, and focusing only on biologic sex underestimates the gendered impact of the pandemic on women. This narrative review summarizes what is known about gender disparities during the COVID-19 pandemic and the economic, domestic, and health burdens along with overlapping vulnerabilities related to the pandemic. In addition, this review outlines recommended strategies that advocacy groups, community leaders, and policymakers should implement to mitigate the widening gender disparities related to COVID-19.  相似文献   
6.
7.
8.
The coronavirus 2019 pandemic has affected almost every aspect of health care delivery in the United States, and the emergency medicine system has been hit particularly hard while dealing with this public health crisis. In an unprecedented time in our history, medical systems and clinicians have been asked to be creative, flexible, and innovative, all while continuing to uphold the important standards in the US health care system. To continue providing quality services to patients during this extraordinary time, care providers, organizations, administrators, and insurers have needed to alter longstanding models and procedures to respond to the dynamics of a pandemic. The Emergency Medicine Treatment and Active Labor Act of 1986, or EMTALA, is 1 example of where these alterations have allowed health care facilities and clinicians to continue their work of caring for patients while protecting both the patients and the clinicians themselves from infectious exposures at the same time.  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