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   9762篇
  免费   1273篇
  国内免费   2篇
耳鼻咽喉   122篇
儿科学   348篇
妇产科学   331篇
基础医学   1538篇
口腔科学   151篇
临床医学   1342篇
内科学   1774篇
皮肤病学   199篇
神经病学   1184篇
特种医学   241篇
外科学   1164篇
综合类   239篇
一般理论   10篇
预防医学   967篇
眼科学   221篇
药学   739篇
中国医学   10篇
肿瘤学   457篇
  2021年   120篇
  2020年   97篇
  2019年   152篇
  2018年   173篇
  2017年   150篇
  2016年   119篇
  2015年   145篇
  2014年   224篇
  2013年   306篇
  2012年   428篇
  2011年   423篇
  2010年   260篇
  2009年   209篇
  2008年   376篇
  2007年   425篇
  2006年   423篇
  2005年   434篇
  2004年   403篇
  2003年   379篇
  2002年   333篇
  2001年   358篇
  2000年   363篇
  1999年   298篇
  1998年   120篇
  1997年   119篇
  1996年   89篇
  1995年   107篇
  1994年   87篇
  1992年   212篇
  1991年   208篇
  1990年   217篇
  1989年   213篇
  1988年   229篇
  1987年   201篇
  1986年   206篇
  1985年   172篇
  1984年   128篇
  1983年   136篇
  1982年   107篇
  1981年   92篇
  1980年   89篇
  1979年   144篇
  1978年   124篇
  1977年   85篇
  1976年   95篇
  1975年   98篇
  1974年   118篇
  1973年   101篇
  1971年   100篇
  1969年   81篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
2.

A key goal for implementation science is the identification of evidence-based consultation protocols and the active ingredients within these protocols that drive clinician behavior change. The current study examined clinicians’ self-coding of fidelity as a potential active ingredient of consultation for the Attachment and Biobehavioral Catch-up (ABC) intervention. It also examined two other potential predictors of clinician fidelity in response to consultation: dosage of consultation and working alliance. Twenty-nine clinicians (97% female, 62% White, M age?=?34 years) participated in a year of weekly fidelity-focused ABC consultation sessions, for which clinicians self-coded fidelity and received consultant feedback on both their coding and their fidelity. Data from the ABC fidelity measure were available for 1067 sessions coded by consultants, and clinicians’ self-coding accuracy was calculated from 1044 sessions coded by both clinicians and consultants. Alliance was measured with the Working Alliance Inventory—Trainee and Supervisor Versions. The study was observational, and fidelity and self-coding accuracy were modeled across time using hierarchical linear modeling. Clinicians’ ABC fidelity, as well as their self-coding accuracy, increased over the course of consultation. Clinicians’ self-coding accuracy predicted their initial fidelity and growth in fidelity. Working alliance was also linked to fidelity and self-coding accuracy. These results suggest that clinician self-coding should be further examined as an active ingredient of consultation. The study has important implications for the design of consultation procedures and fidelity assessments.

  相似文献   
3.
4.
5.
6.
Three cases of enteritis necroticans seen at Port Moresby General Hospital are described. All three cases proved diagnostic problems and in all three the diagnosis was made only at laparotomy. While the condition is uncommon in Port Moresby, these cases indicate that it must now be considered earlier rather than later.  相似文献   
7.
8.
Cough and paradoxical vocal fold motion   总被引:8,自引:0,他引:8  
OBJECTIVES: The differential diagnosis and treatment of patients with chronic cough, paradoxical vocal fold motion, and disordered breathing can be a challenge to most practicing otolaryngologists. Tracheobronchial (ie, asthma, bronchitis, and tracheal stenosis), laryngeal (ie, vocal fold paralysis and neoplasms), and rhinologic (ie, allergies and rhinosinusitis) etiologies are commonly diagnosed and treated effectively. However, occasionally one is faced with patients who are refractory to medical treatment and have no obvious rhinologic, laryngeal or pulmonary cause. STUDY DESIGN AND SETTING: We conducted a review of the literature. METHODS: We present a thorough review of the current medical literature exploring the complex neurologic mechanisms involved in the production of cough and the relationship between gastroesophageal reflux disease, vagal neurapathy, and paradoxical vocal fold motion. RESULTS: The diagnosis and successful treatment of chronic cough can be complex. It requires a thorough understanding of the neurologic mechanisms behind cough excitation and suppression. Successful treatment strategies include aggressive management of the patient's reactive airway disease, gastroesophageal reflux disease, and, in select cases, paradoxical vocal fold motion. This may involve a well-coordinated effort among pulmonologists, otolaryngologists, gastroenterologists, and speech pathologists. CONCLUSION: Gastroesophageal reflux disease, vagal neuropathy, and paradoxical vocal fold motion are additional causes of chronic cough and disordered breathing that need to be considered, in the absence of obvious laryngotracheal and/or rhinologic pathology. A high index of suspicion is essential in making the diagnosis and formulating an effective multidisciplinary treatment plan for these patients.  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