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   96026篇
  免费   6448篇
  国内免费   2034篇
耳鼻咽喉   3137篇
儿科学   1265篇
妇产科学   1883篇
基础医学   3344篇
口腔科学   3377篇
临床医学   9662篇
内科学   10209篇
皮肤病学   795篇
神经病学   2832篇
特种医学   2160篇
外国民族医学   20篇
外科学   33941篇
综合类   12611篇
现状与发展   6篇
一般理论   2篇
预防医学   3441篇
眼科学   4618篇
药学   4114篇
  177篇
中国医学   1124篇
肿瘤学   5790篇
  2024年   205篇
  2023年   2406篇
  2022年   3295篇
  2021年   5310篇
  2020年   5265篇
  2019年   4527篇
  2018年   4336篇
  2017年   3600篇
  2016年   3620篇
  2015年   3639篇
  2014年   7376篇
  2013年   6885篇
  2012年   5427篇
  2011年   5791篇
  2010年   4609篇
  2009年   4447篇
  2008年   4224篇
  2007年   4131篇
  2006年   3616篇
  2005年   3222篇
  2004年   2786篇
  2003年   2244篇
  2002年   1820篇
  2001年   1655篇
  2000年   1430篇
  1999年   1249篇
  1998年   1057篇
  1997年   982篇
  1996年   748篇
  1995年   621篇
  1994年   551篇
  1993年   446篇
  1992年   393篇
  1991年   344篇
  1990年   244篇
  1989年   235篇
  1988年   255篇
  1987年   251篇
  1986年   187篇
  1985年   200篇
  1984年   183篇
  1983年   120篇
  1982年   129篇
  1981年   114篇
  1980年   94篇
  1979年   65篇
  1978年   46篇
  1977年   47篇
  1976年   30篇
  1975年   26篇
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
101.
102.
目的:探讨中西医结合精准护理在日间腹腔镜胆囊切除术(laparoscopic cholecystectomy,LC)中的应用价值。方法:对2018年5月—2018年11月115例行日间LC术患者实施精准护理(观察组),并与同期住院行常规LC术患者92例(对照组)进行对比,观察组在常规护理的基础上,实施耳穴压豆联合穴位贴敷及精准护理方法,分析对比两组患者住院时间、护理满意度评分、术后疼痛评分、术后不良反应发生率等。结果:观察组住院时间、术后疼痛评分及术后不良反应发生率均明显低于对照组(P0.05),护理满意度评分明显高于对照组(P0.05)。结论:中西医结合精准护理可明显提高行日间LC术患者的护理质量,促进患者快速康复。  相似文献   
103.
104.
A Bochdalek hernia (BH) is a congenital abnormality with incomplete closure of the diaphragm. It is usually manifested in infants but rarely in adults. Here, we report an adult patient with gastric volvulus and giant BH that were safely repaired by endoscopic reduction and elective laparoscopic surgery, respectively. A 79-year-old woman presented with left upper abdominal pain but no history of trauma. CT revealed a giant BH with gastric volvulus. After emergency endoscopic reduction of the volvulus, elective laparoscopic repair of the BH was performed. The 8 × 8-cm defect was repaired with interrupted nonabsorbable sutures and a mesh. The patient's postoperative course was uneventful, and no complications or recurrence were observed in the 6 months that followed.  相似文献   
105.
The inferior alveolar nerve and facial nerve are the two most important nerves in the dental and maxillofacial region. The injury to them is one of the major postoperative complications after alveolar surgery and orthognathic surgery. However, recovering the nerve function after injury takes a long time and the recovery effect tends to be unsatisfactory. In recent years, an intensively investigated technique, low level laser which has been applying in assisting the recovery of nerve function, has been gradually proved to be effective in clinically treating postoperative nerve injury. In this article we review in terms of the mechanisms involved in low level laser-assisted functional restoration of nerve injury and its clinical application in the recovery of nerve function in the dental and maxillofacial area as well.  相似文献   
106.
107.

Background

A history of childhood maltreatment and psychopathology are common in adults with obesity.

Objectives

To report childhood maltreatment and to evaluate associations between severity and type of childhood maltreatment and lifetime history of psychopathology among adults with severe obesity awaiting bariatric surgery.

Setting

Four clinical centers of the Longitudinal Assessment of Bariatric Surgery Research Consortium.

Methods

The Childhood Trauma Questionnaire, which assesses presence/severity (i.e., none, mild, moderate, severe) of physical abuse, mental abuse, physical neglect, mental neglect, and sexual abuse, was completed by 302 female and 66 male bariatric surgery patients. Presurgery lifetime history of psychopathology and suicidal ideation/behavior were assessed with the Structured Clinical Interview for DSM-IV and the Suicidal Behavioral Questionnaire-Revised, respectively. Presurgery lifetime history of antidepressant use was self-reported.

Results

Two thirds (66.6%) of females and 47.0% of males reported at least 1 form of childhood trauma; 42.4% and 24.2%, respectively, at greater than or equal to moderate severity. Among women, presence/greater severity of childhood mental or physical abuse or neglect was associated with a higher risk of history of psychopathology (i.e., major depressive disorder, posttraumatic stress disorder, other anxiety disorder, alcohol use disorder, binge eating disorder), suicidal ideation/behavior and antidepressant use (P for all ≤ .02). These associations were independent of age, race, education, body mass index, and childhood sexual abuse. Childhood sexual abuse was independently associated with a history of suicidal ideation/behavior and antidepressant use only (P for both ≤ .05). Statistical power was limited to evaluate these associations among men.

Conclusion

Among women with obesity, presence/severity of childhood trauma was positively associated with relatively common psychiatric disorders.  相似文献   
108.
随着科学技术的进步和对疾病本身认识的深入,直肠癌的外科治疗从局部切除到全直肠系膜切除(TME),从开放手术到腹腔镜手术,再从腹腔镜手术到机器人手术,目前已经进入微创时代。在此时代背景下,经肛门全直肠系膜切除(TaTME) 应运而生。正如TME的提出者Heald所言:“TaTME是近30年直肠癌外科治疗技术的集大成者”,其发展的每一个阶段都有很强的代表性,已成为直肠癌微创外科治疗技术进步发展的一个缩影。  相似文献   
109.
110.
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