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   4578篇
  免费   436篇
  国内免费   24篇
耳鼻咽喉   46篇
儿科学   161篇
妇产科学   102篇
基础医学   511篇
口腔科学   57篇
临床医学   708篇
内科学   821篇
皮肤病学   159篇
神经病学   381篇
特种医学   209篇
外科学   632篇
综合类   179篇
现状与发展   30篇
一般理论   7篇
预防医学   363篇
眼科学   43篇
药学   207篇
  1篇
中国医学   5篇
肿瘤学   416篇
  2023年   197篇
  2022年   32篇
  2021年   67篇
  2020年   86篇
  2019年   82篇
  2018年   109篇
  2017年   88篇
  2016年   86篇
  2015年   119篇
  2014年   153篇
  2013年   175篇
  2012年   186篇
  2011年   201篇
  2010年   161篇
  2009年   178篇
  2008年   210篇
  2007年   214篇
  2006年   201篇
  2005年   184篇
  2004年   164篇
  2003年   139篇
  2002年   126篇
  2001年   126篇
  2000年   154篇
  1999年   129篇
  1998年   76篇
  1997年   88篇
  1996年   66篇
  1995年   60篇
  1994年   57篇
  1993年   58篇
  1992年   86篇
  1991年   84篇
  1990年   55篇
  1989年   86篇
  1988年   68篇
  1987年   57篇
  1986年   41篇
  1985年   51篇
  1984年   43篇
  1983年   32篇
  1982年   38篇
  1981年   30篇
  1980年   31篇
  1979年   21篇
  1978年   29篇
  1976年   31篇
  1975年   30篇
  1974年   27篇
  1973年   28篇
排序方式: 共有5038条查询结果,搜索用时 15 毫秒
41.
PURPOSE: Young women who undergo chemotherapy for breast cancer face serious consequences to their reproductive health. Research in this area has previously focused on men, or on childhood cancer survivors. We sought to explore self-report of reproductive health counseling in young women undergoing chemotherapy for breast cancer. PATIENTS AND METHODS: A total of 166 premenopausal women aged < or = 50 years were recruited from oncology offices in academic and private practices in four northeastern states, as part of a randomized controlled clinical trial aimed at stress reduction. Women were asked a variety of questions regarding diagnosis and treatment, including whether they received any counseling regarding early menopause and fertility issues. RESULTS: Sixty-eight percent and 34% of women reported recalling a discussion with a physician regarding early menopause or fertility, respectively. In multivariate analysis, hormonal therapy and early stage of disease were associated with significantly increased odds of recall of a discussion regarding menopause. Difficulty communicating with medical team was associated with increased odds of recalling a discussion regarding fertility, whereas older age and anxiety in medical situations were associated with decreased odds. CONCLUSION: Many women fail to recall discussions regarding the reproductive health impact of chemotherapy. Demographic, psychological, and disease-related variables are related to recalling such discussions. Counseling about premature menopause and fertility changes is an overlooked aspect of preparation for adjuvant chemotherapy in young premenopausal women with breast cancer. Future research should explore this issue further.  相似文献   
42.
43.
Patients with Beckwith‐Wiedemann spectrum (BWSp) undergo quarterly alpha‐fetoprotein measurement for hepatoblastoma (HB) screening up to 4 years of age, paralleling the epidemiology of nonsyndromic HB. However, specific data on the timing of HB development in BWSp are lacking. Here we compare the timing of presentation of HBs in BWSp with a control cohort of consecutive HB cases, demonstrating that halving screening duration of screening procedures in BWSp likely will not impact its effectiveness.  相似文献   
44.

Objective

To investigate the effect of the introduction of nurse hysteroscopists on patient satisfaction at an outpatient hysteroscopy clinic in the United Kingdom.

Methods

Satisfaction with outpatient hysteroscopy performed in a University Teaching Hospital was measured using an anonymous structured questionnaire in 2000 and 2005. The unpaired t test, Mann-Whitney U test, or χ2 test was used depending on the level of measurement.

Results

A total of 102 women surveyed in 2005 were compared with 139 women surveyed in 2000. Age, ethnicity, perceived health status, previous satisfaction with outpatient appointments, and expectations of the appointment did not differ between the groups. Waiting time for an appointment and once at the clinic fell during the study period (< 0.001); satisfaction increased with the former (< 0.001), but not the latter (= 0.25). Satisfaction with the professional skills of healthcare providers and overall satisfaction was 95% or greater in both years.

Conclusion

High levels of patient satisfaction with outpatient hysteroscopy were maintained after the introduction of nurse hysteroscopists.  相似文献   
45.
46.
47.
48.
49.
Background: Bedside rounds have decreased on teaching services, raising concern about trainees’ clinical skills and patient–physician relationships. Purpose: We sought to identify recognized bedside teachers’ perceived value of bedside rounds to assist in the promotion of bedside rounds on teaching services. Methods: Authors used a grounded theory, qualitative study design of telephone semistructured interviews with bedside teachers (n = 34) from 10 U.S. institutions (2010–2011). Main outcomes were characteristics of participants, themes pertaining to the perceived value of bedside rounds, and quotations highlighting each respective theme. Results: The mean years in academic medicine was 13.7, and 51% were associate or full professors. Six main themes emerged: (a) skill development for learners (e.g., physical examination, communication, and clinical decision-making skills); (b) observation and feedback; (c) role-modeling; (d) team building among trainees, attending, and patient; (e) improved patient care delivery through combined clinical decision-making and team consensus; and (f) the culture of medicine as patient-centered care, which was embodied in all themes. Conclusions: Bedside teachers identify potential benefits of bedside rounds, many of which align with national calls to change our approach to medical education. The practice of bedside rounds enables activities essential to high-quality patient care and education.  相似文献   
50.
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