全文获取类型
收费全文 | 12856篇 |
免费 | 1223篇 |
国内免费 | 20篇 |
专业分类
耳鼻咽喉 | 109篇 |
儿科学 | 561篇 |
妇产科学 | 339篇 |
基础医学 | 1780篇 |
口腔科学 | 409篇 |
临床医学 | 1378篇 |
内科学 | 2642篇 |
皮肤病学 | 198篇 |
神经病学 | 1006篇 |
特种医学 | 659篇 |
外科学 | 1569篇 |
综合类 | 362篇 |
一般理论 | 19篇 |
预防医学 | 1373篇 |
眼科学 | 120篇 |
药学 | 933篇 |
中国医学 | 34篇 |
肿瘤学 | 608篇 |
出版年
2021年 | 200篇 |
2020年 | 90篇 |
2019年 | 178篇 |
2018年 | 256篇 |
2017年 | 154篇 |
2016年 | 197篇 |
2015年 | 226篇 |
2014年 | 300篇 |
2013年 | 443篇 |
2012年 | 649篇 |
2011年 | 604篇 |
2010年 | 367篇 |
2009年 | 393篇 |
2008年 | 577篇 |
2007年 | 604篇 |
2006年 | 544篇 |
2005年 | 518篇 |
2004年 | 480篇 |
2003年 | 436篇 |
2002年 | 434篇 |
2001年 | 409篇 |
2000年 | 414篇 |
1999年 | 364篇 |
1998年 | 210篇 |
1997年 | 183篇 |
1996年 | 157篇 |
1995年 | 134篇 |
1994年 | 156篇 |
1993年 | 139篇 |
1992年 | 296篇 |
1991年 | 277篇 |
1990年 | 268篇 |
1989年 | 288篇 |
1988年 | 262篇 |
1987年 | 260篇 |
1986年 | 251篇 |
1985年 | 204篇 |
1984年 | 166篇 |
1983年 | 171篇 |
1982年 | 101篇 |
1981年 | 97篇 |
1980年 | 93篇 |
1979年 | 174篇 |
1978年 | 132篇 |
1977年 | 120篇 |
1976年 | 88篇 |
1975年 | 101篇 |
1974年 | 103篇 |
1973年 | 91篇 |
1972年 | 77篇 |
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
21.
L D Cromwell P C Freeny C W Kerber L L Kunz A B Harris C M Shaw 《AJR. American journal of roentgenology》1986,147(3):627-631
A toxicologic-pathologic study of isobutyl-2-cyanoacrylate (Bucrylate) was carried out first in dogs and then in humans whose arteriovenous malformations were infused with this embolic agent. The canine specimens obtained at 7, 18, 28, and 147 days after embolization showed the development of a mild histiocytic giant cell reaction, which evolved to end-state sclerotic arteritis. The response was confined to the vessels and did not involve contiguous parenchymal tissues. Ten human specimens, obtained from 1 hr to 7 years after treatment, showed a similar bland reaction with no evidence of suppuration or premalignant changes. 相似文献
22.
A Clark J C Peek P Forbes-Smith R C Bycroft M Shaw F M Graham 《The New Zealand medical journal》1987,100(826):380-382
Reproductive and social histories of the first 100 patients attending the in vitro fertilisation (IVF) programme at National Women's Hospital, Auckland, have been studied. The average age at first treatment was 31.6 (SD 3.9) for women, and 34.2 (4.6) for men. The couples had been married 7.6 (3.3) years and had experienced 6.7 (3.2) years infertility. It was a second marriage for 16. The husbands had on average a higher social classing than the population (class: number [population]--1:16 (7%), 2:18 (14%), 3:42 (28%), 4:19 (29%), 5:4 (14%), 6:1 (8%); but this bias diminished in the next 159 couples. Nine couples withdrew before their quota of cycles, 7 from stress. Tubal disease was the cause of infertility in 93, but in 69 its origin was untraceable. In 22 it could be attributed to pelvic inflammatory disease (eight associated with IUCDs and 2 with sexually transmitted disease) and in two to sterilisation. Although 59 women had a history of having conceived, only 34 were parous, and only 11 had a child of the current union. 相似文献
23.
Submersion injuries are a major cause of morbidity and mortality in children and young adults. The Emergency Department physician should be familiar with the epidemiology, pathophysiology, modes of therapy, and prognostic indicators in order to provide optimum resuscitation to the near-drowning victim, correct referral, and counseling to their families. 相似文献
24.
25.
26.
27.
J Shaw 《The Medical journal of Australia》1992,156(3):222-223
28.
29.
30.
Acute septic arthritis in infancy and childhood 总被引:4,自引:0,他引:4
Despite intensive study of acute septic arthritis in infancy and childhood, poor outcomes continue to occur. Failures are often due to delayed diagnosis and inadequate therapy, but can be due to factors beyond physicians' control such as associated osteomyelitis and occurrence during infancy. Recent advances in the understanding and management of septic arthritis include: (1) demonstration of beneficial effects of continuous passive motion in rabbits; (2) identification of inflammatory mediators of cartilage destruction and their respective sources; (3) recognition of changing patterns of pathologic organisms; (4) evolution of new antibiotics and standards for oral and home intravenous therapy; (5) development of arthroscopic debridement of septic knees; and (6) further refinement of indications for aspiration-irrigation versus open surgical drainage of septic joints. Permanent sequelae from septic arthritis can only be prevented by early diagnosis and aggressive treatment. 相似文献