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   10208685篇
  免费   643825篇
  国内免费   161527篇
耳鼻咽喉   132408篇
儿科学   285691篇
妇产科学   234360篇
基础医学   1265922篇
口腔科学   269595篇
临床医学   1035869篇
内科学   1712402篇
皮肤病学   206212篇
神经病学   737006篇
特种医学   380781篇
外国民族医学   1834篇
外科学   1344310篇
综合类   713468篇
现状与发展   513篇
一般理论   3858篇
预防医学   826459篇
眼科学   233393篇
药学   870799篇
  2805篇
中国医学   210058篇
肿瘤学   546294篇
  2022年   131508篇
  2021年   200762篇
  2020年   143243篇
  2019年   146302篇
  2018年   178423篇
  2017年   158815篇
  2016年   153150篇
  2015年   190007篇
  2014年   278128篇
  2013年   370767篇
  2012年   522993篇
  2011年   567276篇
  2010年   384577篇
  2009年   346099篇
  2008年   483340篇
  2007年   503682篇
  2006年   481369篇
  2005年   443145篇
  2004年   390049篇
  2003年   361726篇
  2002年   333675篇
  2001年   315428篇
  2000年   314278篇
  1999年   269092篇
  1998年   112373篇
  1997年   98707篇
  1996年   92696篇
  1995年   85042篇
  1994年   77025篇
  1993年   65952篇
  1992年   185609篇
  1991年   179772篇
  1990年   174572篇
  1989年   169329篇
  1988年   156513篇
  1987年   152712篇
  1986年   145409篇
  1985年   138763篇
  1984年   105838篇
  1983年   90959篇
  1982年   57987篇
  1979年   95518篇
  1978年   68746篇
  1977年   59309篇
  1976年   55035篇
  1975年   60119篇
  1974年   69682篇
  1973年   66556篇
  1972年   61631篇
  1971年   57282篇
排序方式: 共有10000条查询结果,搜索用时 0 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