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   2829篇
  免费   56篇
  国内免费   45篇
耳鼻咽喉   42篇
儿科学   83篇
妇产科学   305篇
基础医学   154篇
口腔科学   80篇
临床医学   342篇
内科学   137篇
皮肤病学   25篇
神经病学   47篇
特种医学   93篇
外科学   286篇
综合类   631篇
预防医学   255篇
眼科学   10篇
药学   325篇
  7篇
中国医学   72篇
肿瘤学   36篇
  2024年   2篇
  2023年   33篇
  2022年   33篇
  2021年   62篇
  2020年   49篇
  2019年   57篇
  2018年   37篇
  2017年   51篇
  2016年   60篇
  2015年   92篇
  2014年   203篇
  2013年   204篇
  2012年   217篇
  2011年   239篇
  2010年   231篇
  2009年   193篇
  2008年   146篇
  2007年   167篇
  2006年   148篇
  2005年   120篇
  2004年   101篇
  2003年   82篇
  2002年   55篇
  2001年   54篇
  2000年   39篇
  1999年   22篇
  1998年   24篇
  1997年   28篇
  1996年   14篇
  1995年   19篇
  1994年   13篇
  1993年   17篇
  1992年   10篇
  1991年   10篇
  1990年   19篇
  1989年   11篇
  1988年   6篇
  1987年   9篇
  1986年   4篇
  1985年   6篇
  1984年   7篇
  1983年   3篇
  1982年   7篇
  1981年   3篇
  1980年   5篇
  1979年   5篇
  1978年   2篇
  1977年   4篇
  1972年   2篇
  1971年   2篇
排序方式: 共有2930条查询结果,搜索用时 484 毫秒
1.
Pregnancy can be complicated with different surgical emergencies which may potentially endanger the mother as well as foetus. In the modern era of advanced diagnostics and treatments, neither of them in response to a surgical emergency in a pregnant woman should be delayed. Appropriate early intervention is essential to decrease the morbidity and mortality. Following article encompasses common surgical emergencies that can arise in a pregnant woman and tries to suggest the approach that may be taken to reduce the burden of morbidity and mortality.  相似文献   
2.
3.
Cornual, interstitial, and angular pregnancies are terms that are often used interchangeably in both the literature and clinical setting to describe various ectopic pregnancies. The diagnosis of these pregnancies can be difficult, and fear of disrupting an intrauterine pregnancy can cause hesitation during evaluation and management. In our 2 cases, a combination of transvaginal and 3-dimensional ultrasound images provided assistance in the accurate diagnosis of angular ectopic pregnancies. Traditional management of these pregnancies includes a wedge resection for pregnancy resolution. In this set of 2 cases, we describe a unique surgical approach to resolve these pregnancies using operative hysteroscopy.  相似文献   
4.
5.
特殊部位异位妊娠的临床分析   总被引:1,自引:0,他引:1  
目的探讨特殊部位异位妊娠的临床特点,误诊原因及治疗原则。方法对1996年1月至2003年12月诊治的256例特殊部位异位妊娠进行回顾性分析。结果特殊部位异位妊娠发生率占同期异位妊娠的3.36%,术前诊断率48.4%,所有的患者均行手术。视术中情况进行不同的处理,所得标本均经病理切片证实,全部患者愈后良好。结论特殊部位异位妊娠的临床表现不典型,容易漏诊误诊,一旦怀疑本病应尽早住院,及时明确诊断并手术,患者愈后良好。  相似文献   
6.
小儿输尿管开口异位的诊断和治疗(附22例报告)   总被引:8,自引:1,他引:7  
目的 提高小儿输尿管开口异位的诊治效果。方法 总结22例输尿管开口异位患儿临床资料。男1例,女21例。年龄1个月~12岁,平均4岁。单侧17例,双侧5例。21例女童中,有正常分次排尿伴异常漏尿18例,完全持续性漏尿3例;1例男童有上尿路梗阻及泌尿系感染。异位开口于阴道14例、尿道4例、前庭3例、膀胱颈1例。结果 手术治疗20例,其中肾切除者11例、半肾切除者7例,术后漏尿症状消失,3例合并输尿管残端综合征;1例双输尿管膀胱再植术后仍有尿失禁;1例直肠化膀胱术无漏尿症状。结论 明确诊断,选择合理手术是小儿异位输尿管口治疗成功的关键。  相似文献   
7.
舌异位甲状腺的诊断与治疗   总被引:2,自引:0,他引:2  
目的 :探讨舌异位甲状腺诊治方法。方法 :将我院从 1992年 10月~ 2 0 0 0年 2月收治的 18例舌异位甲状腺患者的临床资料进行总结分析 ,其中异位甲状腺全切除术 5例 ,部分切除术 3例 ,次全切除加部分带蒂移植10例。结果 :1例异位甲状腺癌行全切除术后出现甲状腺功能低下 ,部分切除术后 2例复发 ,其余 15例情况良好。结论 :术前常规B超检查、同位素扫描、细胞学检查和冰冻切片对异位甲状腺的诊断有指导意义 ;治疗上 ,患者无症状 ,异位甲状腺无恶变 ,可不予治疗 ,如果出现临床症状 ,对于副甲状腺 ,可作全切除术 ,若为迷走甲状腺 ,则行次全切除加部分带蒂移植是很好的方法  相似文献   
8.
胡孟钩 《河北医学》1998,4(1):22-23
应用临床病理资料资料对27例卵巢异位妊娠加以分析、探讨其临床病理特点是其影响因素,结果表明输卵管炎症及宫内节育环可促发卵巢妊娠的发生。  相似文献   
9.
We present two cases in which complication of a Meckel's diverticulum were dealt with, and in one case diagnosed using the laparoscope. One was a large bleeding diverticulum containing ectopic gastric mucosa, with the diagnosis suggested preoperatively, confirmed laparoscopically, and the pathology resected extracorporeally. The second was a partial intermittent small-bowel obstruction due to torsion around the mesodiverticular band, diagnosed and resected via the laparoscope. The literature of Meckel's diverticula and complications is reviewed, with open and laparoscopic treatment options. Although uncommon, many cases of Meckel's diverticulum may be quite suitable for laparoscopic diagnosis and treatment.  相似文献   
10.
Objective: To study tubal patency and fertility outcome of patients with expectantly managed ectopic pregnancy (EP).

Design: A prospective study.

Setting: Department of Obstetrics and Gynecology, Turku University Central Hospital, Turku, Finland.

Patient(s): Thirty patients who wanted to become pregnant again were treated successfully by expectant management of EP.

Intervention(s): Patients were examined with posttreatment hysterosalpingography, and they filled out a questionnaire about their subsequent pregnancies.

Main Outcome Measure(s): Free passage through open lumen showing tubal patency; number of full-term pregnancies and EPs revealing relative rate of subsequent fertility.

Result(s): A free passage through the diseased tube was seen in 93% of the cases (28 of 30). Two of the 24 patients (8.4%) who wanted to become pregnant had an obstruction in the diseased tube. One (4.2%) of them had a normal opposite tube and later had a normal pregnancy. The other (4.2%) had an obstruction in both tubes and subsequently had a repeat EP. One of the 6 patients had an EP (this patient did not want to become pregnant and did not use contraception). However, her posttreatment hysterosalpingography was normal. In total, the subsequent pregnancy rate was 88% (21 of 24), and the rate of repeat EP was 4.2% (1 of 24).

Conclusion(s): Patients who are treated with expectant management have a good long-term fertility outcome. Spontaneous regression of EP does not lead to increased harm or damage to the tube, i.e., the risk for repeat EP is low.  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