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   25564篇
  免费   799篇
  国内免费   506篇
耳鼻咽喉   803篇
儿科学   309篇
妇产科学   339篇
基础医学   552篇
口腔科学   1036篇
临床医学   1295篇
内科学   2103篇
皮肤病学   116篇
神经病学   801篇
特种医学   408篇
外科学   12744篇
综合类   2386篇
一般理论   1篇
预防医学   693篇
眼科学   466篇
药学   816篇
  12篇
中国医学   261篇
肿瘤学   1728篇
  2023年   304篇
  2022年   585篇
  2021年   953篇
  2020年   647篇
  2019年   2360篇
  2018年   2126篇
  2017年   1253篇
  2016年   462篇
  2015年   551篇
  2014年   1197篇
  2013年   1046篇
  2012年   1011篇
  2011年   1098篇
  2010年   913篇
  2009年   872篇
  2008年   840篇
  2007年   804篇
  2006年   647篇
  2005年   552篇
  2004年   483篇
  2003年   508篇
  2002年   430篇
  2001年   402篇
  2000年   348篇
  1999年   319篇
  1998年   275篇
  1997年   204篇
  1996年   144篇
  1995年   142篇
  1994年   108篇
  1993年   80篇
  1992年   62篇
  1991年   54篇
  1990年   52篇
  1989年   58篇
  1988年   52篇
  1987年   56篇
  1985年   519篇
  1984年   510篇
  1983年   378篇
  1982年   451篇
  1981年   411篇
  1980年   424篇
  1979年   355篇
  1978年   339篇
  1977年   199篇
  1976年   368篇
  1975年   315篇
  1974年   279篇
  1973年   254篇
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
101.
Isoflurane for removal of chest drains after cardiac surgery   总被引:2,自引:0,他引:2  
Thirty-five patients who had undergone uncomplicated cardiac surgery were randomly allocated to receive either Entonox or isoflurane 0.25% in Entonox as inhalational analgesia for the removal of their two chest drains. The gases were presented premixed in high-pressure cylinders and were self-administered by means of a demand valve. The removal of the second drain was more painful than the first but that pain was better controlled by isoflurane 0.25% in Entonox than by Entonox alone.  相似文献   
102.
103.
患者,女,32岁,因左(足 母)趾内侧疼痛8年,加重伴(足 母)趾肿胀1个月入院。入院前曾行血尿酸、抗O、RF未见异常,ESR28mm/L。入院查体:疼痛性跛行,左(足 母)趾跖趾关节周围红肿,有压痛,第一跖趾关节活动度检查:跖屈与背伸均为30°。X线示左(足 母)趾第一跖趾关节跖内侧可见多数散在的、大小相仿的高密度钙化影(图1)。入院诊断:左(足 母)趾跖趾关节滑膜性骨软骨瘤病。完善术前各项准备后,于2001年7月24日在连续硬膜外麻醉下行左(足 母)趾跖趾关节滑膜性骨软骨瘤切除术。  相似文献   
104.
A postal survey of 100 hospitals throughout the United Kingdom and Ireland was conducted to assess current practice in the pre-operative assessment and use of pulmonary artery catheters in patients undergoing elective abdominal aortic aneurysm repair. Seventy-four completed questionnaires were received. The survey revealed that 53% of respondents hold designated pre-operative assessment clinics, attended by anaesthetists in 54% and cardiologists in 26%. However, only 4% of respondents have a written protocol for stratifying patients and assessing peri-operative risk. By far the commonest investigation of choice for further cardiological assessment is transthoracic echocardiography (67%). Other investigations of choice are multiple update gated acquisition (MUGA) scan (13%), dipyridamole thallium imaging (9%), exercise ECG (6%), stress echocardiography (1%) and stress MUGA (1%). Two units (3%) never undertook further investigation. Pulmonary artery flotation catheters are used as a routine by 9% of respondents, dependent upon left ventricular ejection fraction by 65%, dependent on other factors by 7% and not used at all by 19%. The survey reveals widespread variation in pre-operative assessment of patients undergoing elective repair of abdominal aortic aneurysm.  相似文献   
105.
The importance of art studies in the training of plastic surgeons has not been well recognized. Presently, very few medical schools offer courses on art or include it in the humanities. Because the study of art is a great experience that helps to develop the trained eye, the inclusion of art in medical education is recommended. For plastic and aesthetic surgeons, art knowledge can greatly add to the development of surgical skill. Courses in drawing, modeling, and casting are recommended along with lectures or seminars on art appreciation.Delivered as the Nojarova Lecture at the New York Academy of Medicine, the New York Regional Society of Plastic and Reconstructive Surgery, March 3, 1990. Also given at the Italian-American Conference of Plastic Surgeons, Venice, Italy, September 23, 1990  相似文献   
106.
The type and frequency of spinal therapeutic work being undertaken in the United Kingdom (UK) by clinicians with an interest in the surgcial treatment of disorders of the spine (primary and secondary subspecialty interest) were evaluated by means of a postal questionnaire. The willingness of respondents to take part in postgraduate spinal training was determined along with issues regarding accessibility of spinal services to non-specialist physicians in the health service in the UK. The results of 450 respondents provided insight into the types of procedures taking place, for example: primary spinal decompression was regularly carried out by 76% of surgeons, while at least 20% of respondents regularly carried out 66% of the procedures surveyed. We found that 10% of surgeons indicated that they were prepared to participate actively in postgraduate spinal surgical training.  相似文献   
107.
外科围手术期糖尿病的治疗   总被引:1,自引:0,他引:1  
黑发志  马冲  郝辉 《吉林医学》2003,24(4):315-316
目的:探讨外科手术病人伴发糖尿病的治疗及围手术期处理。方法:对1998年至2000年收治的125例外科手术伴发糖尿病病例进行回顾总结。结果:93例给予补液、降糖等处理无1例死亡。其他32例未进行有效的降糖处理,死亡5例。结论:外科手术病人伴发糖尿病时,围手术期要控制血糖,可以降低手术并发症及死亡率。  相似文献   
108.
An out line of the scheme of training specialists in Otorhinolaryngology-Head and Neck Surgery (ORL-HNS) in South Africa is given and the difference with Indian training discussed  相似文献   
109.
目的:探讨妊娠期嵌顿痔手术治疗的可行性和安全性。方法:采用手术方法治疗妊娠期嵌顿痔91例,观察疗效。结果全部治愈,均能及时解除痛苦,恢复排便功能。结论:手术方法治疗妊娠期嵌顿痔基本安全可靠。  相似文献   
110.
阴茎背深静脉包埋术治疗勃起功能障碍5例   总被引:8,自引:2,他引:6  
目的 :评价阴茎背深静脉包埋术治疗勃起功能障碍 (ED)的疗效。 方法 :对 3例静脉性和 2例动静脉混合性ED病人施行阴茎背深静脉包埋术 ,术后随访疗效。 结果 :术后 2个月首次随访 ,3例静脉性ED病人获得满意性交 ,2例动静脉混合性ED病人基本能勃起 ,口服西地那非 5 0mg后可以完成性交。 5例术后随访 3~ 12个月(平均 7个月 )保持以上疗效。 结论 :阴茎背深静脉包埋术创伤小 ,几乎无并发症 ,是治疗静脉性ED的有效疗法  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