全文获取类型
收费全文 | 37749篇 |
免费 | 2027篇 |
国内免费 | 113篇 |
专业分类
耳鼻咽喉 | 461篇 |
儿科学 | 2209篇 |
妇产科学 | 726篇 |
基础医学 | 4806篇 |
口腔科学 | 917篇 |
临床医学 | 2678篇 |
内科学 | 7640篇 |
皮肤病学 | 859篇 |
神经病学 | 2109篇 |
特种医学 | 831篇 |
外科学 | 5323篇 |
综合类 | 1350篇 |
一般理论 | 16篇 |
预防医学 | 2168篇 |
眼科学 | 1567篇 |
药学 | 3621篇 |
中国医学 | 288篇 |
肿瘤学 | 2320篇 |
出版年
2023年 | 247篇 |
2022年 | 695篇 |
2021年 | 1226篇 |
2020年 | 672篇 |
2019年 | 914篇 |
2018年 | 1111篇 |
2017年 | 765篇 |
2016年 | 986篇 |
2015年 | 1031篇 |
2014年 | 1410篇 |
2013年 | 1831篇 |
2012年 | 2559篇 |
2011年 | 2554篇 |
2010年 | 1457篇 |
2009年 | 1313篇 |
2008年 | 1907篇 |
2007年 | 1844篇 |
2006年 | 1860篇 |
2005年 | 1481篇 |
2004年 | 1468篇 |
2003年 | 1250篇 |
2002年 | 1069篇 |
2001年 | 850篇 |
2000年 | 897篇 |
1999年 | 759篇 |
1998年 | 327篇 |
1997年 | 227篇 |
1996年 | 231篇 |
1995年 | 226篇 |
1994年 | 183篇 |
1993年 | 157篇 |
1992年 | 506篇 |
1991年 | 424篇 |
1990年 | 442篇 |
1989年 | 410篇 |
1988年 | 368篇 |
1987年 | 372篇 |
1986年 | 356篇 |
1985年 | 333篇 |
1984年 | 270篇 |
1983年 | 228篇 |
1982年 | 142篇 |
1979年 | 235篇 |
1978年 | 150篇 |
1977年 | 181篇 |
1975年 | 172篇 |
1974年 | 185篇 |
1973年 | 184篇 |
1972年 | 174篇 |
1971年 | 161篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
11.
Circulating immune complexes in pre-eclampsia. 总被引:3,自引:0,他引:3
Serum samples from 20 non-pregnant women, 30 women with normal pregnancy and 50 women with pregnancy associated with pre-eclampsia were tested for circulating immune complexes using the polyethyleneglycol precipitation method. A highly significant positive correlation was found between circulating immune complexes and severe pre-eclampsia (BP greater than 140/90 mm Hg, albuminuria greater than 0.25 g/l). In contrast to this the difference in immune complex levels between non-pregnant subject, normal pregnancy cases and patients with mild pre-eclampsia was not statistically significant. A significant positive correlation was found between the level of circulating immune complexes and the severity of albuminuria. These findings suggest that circulating immune complexes, though not seeming to play an aetiological role in pre-eclampsia may very well be involved in its pathogenesis. 相似文献
12.
Because of its neurocognitive enhancing effects, Gingko biloba has emerged as amongst the most commonly used herbal products. We report a liver transplant recipient with potentially life-threatening toxicity resulting from Gingko biloba use. Seven days after a second liver transplantation for recurrent hepatitisB virus infection, subphrenic hematoma was documented in a 59-year-old Korean patient. Failure to control bleeding with CT-guided drainage necessitated exploratory laparotomy for the evacuation of a large subphrenic hematoma. Three weeks later, an episode of vitreous hemorrhage was documented. Unbeknownst to his care providers, the patient had been consuming Gingko biloba throughout the postoperative period. No further bleeding episodes occurred after the cessation of Gingko biloba use. Unrecognized use of herbal products may be associated with serious side effects and adverse clinical sequelae in transplant recipients. Given their increasing popularity, the use of herbal products should be routinely sought as part of the history in transplant recipients. 相似文献
13.
YS Nagar S Singh V Sawlani L Pal K Dimri P Lal 《Journal of Medical Imaging and Radiation Oncology》2005,49(2):160-162
A rare case of an advanced primary broad ligament carcinoma is discussed, with a review of the literature regarding its incidence, presentation and management. This patient showed a complete response to adjuvant cisplatin-based chemotherapy following panhysterectomy and is presently without any evidence of disease, 15 months after completion of her treatment. 相似文献
14.
K. Singh 《International urogynecology journal》2002,13(1):50-51
The author reports a complicated recurrence of genital tract fistula. The initial vesicovaginal fistula resulted from obstructed
labor, which was subsequently surgically managed without success. The patient had a recurrent vesicovaginal fistula that was
formed by the erosion of vesical stones through the anterior endopelvic fascia into the vagina. The stones eventually eroded
into the rectum, resulting in the formation of a complex vesicovaginal and rectovaginal fistula. 相似文献
15.
16.
17.
Concurrent positive serology for ehrlichiosis and Lyme disease 总被引:1,自引:0,他引:1
18.
Allergic autoimmune reaction after exposure to heavy metals such as mercury may play a causal role in autism, a developmental disorder of the central nervous system. As metallothionein (MT) is the primary metal-detoxifying protein in the body, we conducted a study of the MT protein and antibodies to metallothionein (anti-MT) in normal and autistic children whose exposure to mercury was only from thimerosal-containing vaccines. Laboratory analysis by immunoassays revealed that the serum level of MT did not significantly differ between normal and autistic children. Furthermore, autistic children harboured normal levels of anti-MT, including antibodies to isoform MT-I (anti-MT-I) and MT-II (anti-MT-II), without any significant difference between normal and autistic children. Our findings indicate that because autistic children have a normal profile of MT and anti-MT, the mercury-induced autoimmunity to MT may not be implicated in the pathogenesis of autism. 相似文献
19.
20.
Guntur E Luis Chee-Khuen Yong Deepak A Singh S Sengupta David SK Choon 《Journal of orthopaedic surgery and research》2007,2(1):22-10