全文获取类型
收费全文 | 920篇 |
免费 | 49篇 |
国内免费 | 22篇 |
专业分类
耳鼻咽喉 | 3篇 |
儿科学 | 55篇 |
妇产科学 | 6篇 |
基础医学 | 107篇 |
口腔科学 | 20篇 |
临床医学 | 119篇 |
内科学 | 194篇 |
皮肤病学 | 22篇 |
神经病学 | 36篇 |
特种医学 | 143篇 |
外科学 | 108篇 |
综合类 | 16篇 |
预防医学 | 55篇 |
眼科学 | 2篇 |
药学 | 47篇 |
肿瘤学 | 58篇 |
出版年
2021年 | 15篇 |
2020年 | 4篇 |
2019年 | 4篇 |
2018年 | 7篇 |
2017年 | 8篇 |
2016年 | 10篇 |
2015年 | 14篇 |
2014年 | 19篇 |
2013年 | 29篇 |
2012年 | 22篇 |
2011年 | 30篇 |
2010年 | 43篇 |
2009年 | 45篇 |
2008年 | 26篇 |
2007年 | 40篇 |
2006年 | 35篇 |
2005年 | 35篇 |
2004年 | 30篇 |
2003年 | 13篇 |
2002年 | 30篇 |
2001年 | 26篇 |
2000年 | 29篇 |
1999年 | 22篇 |
1998年 | 39篇 |
1997年 | 40篇 |
1996年 | 34篇 |
1995年 | 31篇 |
1994年 | 16篇 |
1993年 | 20篇 |
1992年 | 14篇 |
1991年 | 14篇 |
1990年 | 17篇 |
1989年 | 27篇 |
1988年 | 26篇 |
1987年 | 22篇 |
1986年 | 15篇 |
1985年 | 15篇 |
1984年 | 11篇 |
1983年 | 8篇 |
1982年 | 16篇 |
1981年 | 7篇 |
1980年 | 15篇 |
1978年 | 8篇 |
1977年 | 8篇 |
1976年 | 9篇 |
1975年 | 7篇 |
1970年 | 5篇 |
1969年 | 2篇 |
1964年 | 3篇 |
1947年 | 8篇 |
排序方式: 共有991条查询结果,搜索用时 15 毫秒
1.
2.
3.
4.
5.
6.
7.
Kinnison ML; Perler BA; Kaufman SL; Mitchell SE; Kadir S; Williams GM; White RI Jr 《Radiology》1986,160(3):727-730
In situ saphenous vein grafts are being used with increasing frequency for bypass procedures involving the femoral and popliteal arteries. Complications of these procedures include anastomotic stenoses and persistent arteriovenous fistulae that may result in failure of the graft. Balloon angioplasty and embolotherapy with detachable balloons were employed successfully in three or four recent cases of patients with complications from in situ grafts. Tailored angiography is essential for evaluating in situ grafts, and interventional techniques are extremely useful for managing complications. 相似文献
8.
Dr. Steven A. Curley MD Robert A. Newman PhD Thomas B. Dougherty MD PhD George M. Fuhrman MD Diana L. Stone BS Jeffrey A. Mikolajek CRNA Sal Guercio CCP Ann Guercio CCP C. Humberto Carrasco MD M. Tien Kuo PhD David C. Hohn MD 《Annals of surgical oncology》1994,1(5):389-399
Background: We performed a phase I study of a novel system of complete hepatic venous isolation and extracorporeal chemofiltration in
patients with unresectable hepatocellular carcinoma (HCC) to determine (a) whether systemic exposure to doxorubicin could
be limited after high-dose hepatic arterial infusion (HAI), and (b) the hepatic maximum tolerated dose (MTD) of doxorubicin.
Methods: Ten patients with biopsy-proven HCC were treated with 20-min HAI of doxorubicin (17 total treatments). Two patients were
treated with doxorubicin 60 mg/m2, three patients were treated at 90 mg/m2, and five patients received 120 mg/m2. A newly developed dual-balloon vena cava catheter was advanced from the femoral vein, and the balloons were inflated to
isolate and capture total hepatic venous outflow. The hepatic venous blood was pumped through extracorporeal carbon chemofilters
before return of the blood to the systemic circulation.
Results: Peak systemic doxorubicin levels were an average 85.6% lower than were peak prefilter levels (p<0.01). Because all catheters
were placed percutaneously and because the chemofiltration markedly limited systemic chemotherapy exposure, patients were
discharged 1 day after 16 of the 17 treatments. The hepatic and systemic MTD of doxorubicin in this treatment protocol was
120 mg/m2.
Conclusions: This novel system of complete hepatic venous isolation and chemofiltration limits systemic chemotherapy toxicity and will
allow use of higher doses of chemotherapeutic agents to treat HCC.
The results of this study were presented at the 46th Annual Cancer Symposium of The Society of Surgical Oncology, Los Angeles,
California, March 18–21, 1993. 相似文献
9.
Polycystic kidney disease is an autosomal dominant disease that may be associated with cystic disease of the liver. In women, the cysts may develop early and be more troublesome than in men. Cystadenocarcinoma of the pancreas is uncommon, comprising 1% of primary pancreatic malignancies. This case report is the first to describe a familial association between polycystic kidney disease and cystadenocarcinoma of the pancreas and liver in the English medical literature. A patient with autosomal dominant polycystic kidney disease (ADPKD) and multiple hepatic cysts developed cystadenocarcinoma of the pancreas with multiple malignant liver cysts. The patient's mother, sister, and niece had ADPKD, and the patient's sister also died of pancreatic cystadenocarcinoma. We believe that the development of these two disease entities in which the primary pathology is cyst formation has a genetic association. (Gastroenterology 1997 Jun;112(6):2104-7) 相似文献
10.
Pheochromocytoma and paraganglioma: comparison of MR imaging with CT and I-131 MIBG scintigraphy 总被引:6,自引:0,他引:6
To ascertain the magnetic resonance (MR) imaging characteristics of pheochromocytomas and paragangliomas and to compare MR with computed tomography (CT) and iodine-131 metaiodobenzylguanidine (I-131 MIBG), 19 patients (18 with pheochromocytomas, one with a paraganglioma) were studied. The 18 patients with pheochromocytomas had had positive findings with I-131 MIBG scintigraphy. Abdominal pheochromocytomas were generally hypointense compared with normal liver on T1-weighted MR images and extremely hyperintense on T2-weighted MR images. MR imaging was preferable to CT in the evaluation of primary pheochromocytomas due to superior tissue characterization, particularly in the patient with hypertension and borderline catecholamine levels. For patients with recurrent or metastatic disease, the data suggest that I-131 MIBG scintigraphy is the examination of choice. 相似文献