全文获取类型
收费全文 | 13222篇 |
免费 | 1403篇 |
国内免费 | 17篇 |
专业分类
耳鼻咽喉 | 122篇 |
儿科学 | 361篇 |
妇产科学 | 305篇 |
基础医学 | 1838篇 |
口腔科学 | 173篇 |
临床医学 | 1782篇 |
内科学 | 2309篇 |
皮肤病学 | 287篇 |
神经病学 | 1104篇 |
特种医学 | 564篇 |
外科学 | 1559篇 |
综合类 | 169篇 |
一般理论 | 12篇 |
预防医学 | 1464篇 |
眼科学 | 157篇 |
药学 | 832篇 |
中国医学 | 10篇 |
肿瘤学 | 1594篇 |
出版年
2022年 | 102篇 |
2021年 | 255篇 |
2020年 | 162篇 |
2019年 | 269篇 |
2018年 | 327篇 |
2017年 | 264篇 |
2016年 | 268篇 |
2015年 | 310篇 |
2014年 | 442篇 |
2013年 | 609篇 |
2012年 | 867篇 |
2011年 | 904篇 |
2010年 | 472篇 |
2009年 | 461篇 |
2008年 | 685篇 |
2007年 | 694篇 |
2006年 | 681篇 |
2005年 | 642篇 |
2004年 | 639篇 |
2003年 | 547篇 |
2002年 | 460篇 |
2001年 | 282篇 |
2000年 | 311篇 |
1999年 | 288篇 |
1998年 | 126篇 |
1997年 | 132篇 |
1996年 | 101篇 |
1995年 | 106篇 |
1994年 | 89篇 |
1993年 | 85篇 |
1992年 | 224篇 |
1991年 | 234篇 |
1990年 | 188篇 |
1989年 | 176篇 |
1988年 | 174篇 |
1987年 | 146篇 |
1986年 | 160篇 |
1985年 | 143篇 |
1984年 | 111篇 |
1983年 | 94篇 |
1981年 | 77篇 |
1979年 | 81篇 |
1978年 | 87篇 |
1977年 | 82篇 |
1976年 | 79篇 |
1975年 | 73篇 |
1974年 | 92篇 |
1973年 | 83篇 |
1972年 | 71篇 |
1971年 | 70篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
61.
Mark D Herron Sheryll L Vanderhooft Carrie Byington Jerald D King 《Journal of perinatology》2003,23(3):256-259
Aspergillosis is an uncommon neonatal infection, diagnosed with an increasing frequency over the last two decades. We report a premature neonate who developed aspergillosis while receiving amphotericin B and fluconazole for candidiasis. Despite early recognition and diagnosis, the infant died. We review the clinical appearance of Aspergillus species, the distinctions between primary cutaneous aspergillosis and invasive aspergillosis, and advances in diagnosis and treatment. 相似文献
62.
63.
Reed Jon A.; Nador Roland G.; Spaulding David; Tani Yoichi; Cesarman Ethel; Knowles Daniel M. 《Blood》1998,91(10):3825-3832
64.
65.
Phantom limb pain and epidural anesthesia for cesarean section 总被引:2,自引:0,他引:2
66.
W P Vaughan J D Dennison E C Reed L Klassen T R McGuire W G Sanger P P Kumar P I Warkentin B G Gordon P J Bierman 《Bone marrow transplantation》1991,8(6):489-495
Twenty-four patients between the ages of 8 and 48 years (median 27.5) with high-risk for relapse hematologic malignancy received a marrow transplant from an HLA and MLC compatible sibling donor after chemotherapy with busulfan, 4 mg/kg/day for 4 days by mouth, cyclophosphamide 60 mg/kg/day i.v. for 2 days, and etoposide 60 mg/kg i.v. over 4 h on the first day of cyclophosphamide treatment (BU/CY/VP). Toxicity consisted of mucositis, skin rash, and nausea and vomiting in all patients, transient fever thought to be due to etoposide administration in 16/24 (67%) patients, and clinical veno-occlusive disease (VOD) of the liver in 4/24 (17%). There were nine deaths from causes other than recurrent disease in the first 100 days after transplant and two deaths after day 100, a total transplant mortality of 11/24 (46%). Three patients relapsed, but 10/24 (40%) remain alive and disease free 26-182 weeks (median 60 weeks) from transplant. These results compare favorably with results in a group of 12 similar risk patients treated with total body irradiation (TBI) containing regimens during an overlapping time period. Six of the TBI patients have had persistent or recurrent disease and only two (17%) are currently alive and disease free. The probability of disease persistence or relapse is 67% in the TBI group and 20% in the BU/CY/VP group (p less than 0.02). 相似文献
67.
It is estimated that 1.7% of orthotopic liver transplant recipients will develop abdominal aortic aneurysms (AAAs) after transplantation. It has been observed that these aneurysms expand faster in transplant recipients; therefore, aggressive surveillance for AAAs in transplant recipients is required. Endovascular aneurysm repair is rapidly becoming the standard of care, especially in patients with previous abdominal surgery and other significant comorbidities. This article describes our experience with AAAs in orthotopic liver transplant recipients treated successfully by endovascular stent graft repair. 相似文献
68.
T J Wieman T S Mang V H Fingar T G Hill M W Reed T S Corey V Q Nguyen E R Render 《Surgery》1988,104(3):512-517
The aim of this series of experiments was to determine the dynamic blood flow changes that occur in normal and neoplastic tissues during photodynamic therapy. Mice bearing SMT-F tumors and rats with transplanted chondrosarcomas were injected with graded doses of dihematoporphyrin ether. Studies of changes in single-vessel and whole-tumor blood flow were carried out with 630 nm light activation. A helium neon laser Doppler velocimeter was used to stimulate dihematoporphyrin ether, as well as to measure changes in flow velocity in both single-vessel and whole-tumor models. There was a reduction of flow velocity in all vessels and tumors in animals injected with 1 to 40 mg/kg dihematoporphyrin ether intraperitoneally. The extent of flow reduction was related to drug dose administered. Decreases in blood flow began within 10 seconds of light stimulation and were maximal within 5 minutes. Both normal and tumor vessels responded similarly. We conclude that photodynamic therapy leads to significant microcirculatory changes that may be pertinent to the mechanism of tumor necrosis. 相似文献
69.
70.