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   10705016篇
  免费   714193篇
  国内免费   162081篇
耳鼻咽喉   141879篇
儿科学   302652篇
妇产科学   250153篇
基础医学   1360512篇
口腔科学   282480篇
临床医学   1076763篇
内科学   1785009篇
皮肤病学   222163篇
神经病学   779618篇
特种医学   397756篇
外国民族医学   1957篇
外科学   1423995篇
综合类   741950篇
现状与发展   515篇
一般理论   5099篇
预防医学   885096篇
眼科学   252653篇
药学   898778篇
  2811篇
中国医学   210933篇
肿瘤学   558518篇
  2022年   132321篇
  2021年   203190篇
  2020年   144400篇
  2019年   149329篇
  2018年   183453篇
  2017年   162836篇
  2016年   158093篇
  2015年   196047篇
  2014年   287266篇
  2013年   394685篇
  2012年   531227篇
  2011年   574284篇
  2010年   396779篇
  2009年   359933篇
  2008年   490005篇
  2007年   509949篇
  2006年   489565篇
  2005年   451017篇
  2004年   397112篇
  2003年   367984篇
  2002年   339647篇
  2001年   322844篇
  2000年   320725篇
  1999年   276994篇
  1998年   120470篇
  1997年   106425篇
  1996年   100551篇
  1995年   92754篇
  1994年   84366篇
  1993年   73030篇
  1992年   192466篇
  1991年   186327篇
  1990年   180651篇
  1989年   175772篇
  1988年   162611篇
  1987年   158909篇
  1986年   151493篇
  1985年   146164篇
  1984年   113816篇
  1983年   98597篇
  1982年   66714篇
  1979年   103312篇
  1978年   76426篇
  1977年   66650篇
  1976年   62215篇
  1975年   66914篇
  1974年   76655篇
  1973年   73597篇
  1972年   69044篇
  1971年   64092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