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   10703737篇
  免费   716036篇
  国内免费   162091篇
耳鼻咽喉   141398篇
儿科学   302444篇
妇产科学   249442篇
基础医学   1361750篇
口腔科学   281337篇
临床医学   1080283篇
内科学   1784302篇
皮肤病学   222149篇
神经病学   779299篇
特种医学   397666篇
外国民族医学   1805篇
外科学   1422943篇
综合类   741769篇
现状与发展   515篇
一般理论   5057篇
预防医学   886745篇
眼科学   252035篇
药学   898063篇
  2810篇
中国医学   210974篇
肿瘤学   559078篇
  2022年   132336篇
  2021年   203187篇
  2020年   144411篇
  2019年   149329篇
  2018年   183461篇
  2017年   162829篇
  2016年   158084篇
  2015年   196016篇
  2014年   287216篇
  2013年   394530篇
  2012年   531286篇
  2011年   574401篇
  2010年   396822篇
  2009年   359847篇
  2008年   490076篇
  2007年   509874篇
  2006年   489625篇
  2005年   451024篇
  2004年   397200篇
  2003年   368042篇
  2002年   339644篇
  2001年   324536篇
  2000年   322702篇
  1999年   278532篇
  1998年   121056篇
  1997年   106806篇
  1996年   100956篇
  1995年   93290篇
  1994年   84870篇
  1993年   73457篇
  1992年   193783篇
  1991年   187471篇
  1990年   181699篇
  1989年   176727篇
  1988年   163368篇
  1987年   159638篇
  1986年   152279篇
  1985年   146896篇
  1984年   114274篇
  1983年   99078篇
  1982年   66953篇
  1979年   103370篇
  1978年   76478篇
  1977年   66716篇
  1976年   62290篇
  1975年   66692篇
  1974年   76486篇
  1973年   73381篇
  1972年   68630篇
  1971年   63717篇
排序方式: 共有10000条查询结果,搜索用时 54 毫秒
1.
ABSTRACT

The lack of stable housing can impair access and continuity of care for patients living with human immunodeficiency virus (HIV). This study investigated the relationship between housing status assessed at multiple time points and several core HIV-related outcomes within the same group of HIV patients experiencing homelessness. Patients with consistently stable housing (CSH) during the year were compared to patients who lacked CSH (non-CSH group). The study outcomes included HIV viral load (VL), CD4 counts, and health care utilization. Multivariable and propensity weighted analyses were used to assess outcomes adjusting for potential group differences. Of 208 patients, 88 (42%) had CSH and 120 (58%) were non-CSH. Patients with CSH had significantly higher proportion of VL suppression and higher mean CD4 counts. The frequency of nurse visits in the CSH group was less than a half of that in the non-CSH group. Patients with CSH were less likely to be admitted to the medical respite facility, and if admitted, their length of stay was about a half of that for the non-CSH group. Our study findings show that patients with CSH had significantly better HIV virologic control and immune status as well as improved health care utilization.  相似文献   
2.
Introduction: The landscape of poly (ADP-ribose) polymerase (PARP) inhibition in ovarian cancer is rapidly evolving and becoming increasingly complex. Ovarian cancer is leading therapeutic innovation by providing the proof of concept for DNA repair as a target. Three different PARP inhibitors have now received approvals in the US and Europe in different indications. Subtle but crucial differences can be found among the licensed indications for each PARP inhibitor in terms of histology, type of BRCA mutation (germline and/or somatic), number of prior lines of chemotherapy and whether the indication is in the treatment or maintenance settings.

Areas covered: We review the latest clinical data regarding the PARP inhibitor rucaparib in ovarian cancer, provide an update on the evolving landscape of PARP inhibition in ovarian cancer, and summarize avenues of ongoing and future research.

Expert opinion: All eligible patients should be offered a PARP inhibitor. SOLO1 trial results demonstrated an unprecedented benefit maintenance with PARP inhibitors in first line. Results from trials evaluating PARP inhibitors as maintenance in first line regardless of BRCA status and from trials evaluating combinatorial strategies are eagerly awaited.  相似文献   

3.
4.
5.
6.
穴位埋线是长效针灸,是在传统针具和针法基础上建立和发展起来的,是针灸技术的发展和延伸,穴位埋线的核心技术是穿刺技术,穴位埋线的三大要素中,针具、埋藏物、穿刺技巧之间是互相影响、互相促进的。针具的改进成功实现了穴位埋线疗法的第一次飞跃,埋藏物的改进成功实现了穴位埋线疗法的第二次飞跃,穿刺技术的改进和创新是穴位埋线疗法的第三次飞跃。  相似文献   
7.
8.
9.
10.
Although depression is associated to physical discomfort, meanings of the body in depression are rarely addressed in clinical research. Drawing on the concept of the lived body, this study explores depression as an embodied phenomenon. Using a hermeneutic phenomenological approach, the analysis of narrative‐based interviews with 11 depressed adults discloses a thematic structure of an embodied process of an ambiguous striving against fading. Five subthemes elicit different dimensions of this process, interpreted as disabling or enabling: feeling estranged, feeling confined, feeling burdensome, sensing life and seeking belongingness. In relation to clinical practice, we suggest that the interdisciplinary team can focus on enhancing the enabling dimensions, for example through guided physical activities to support the patient to feel more alive, capable and connected. Moreover, we suggest that the treatment process benefits from an increased awareness of the ambiguity in the patient's struggle, acknowledging both destructive and recharging elements of the withdrawing, and the perceived conflict in‐between.  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