全文获取类型
收费全文 | 734篇 |
免费 | 35篇 |
国内免费 | 1篇 |
专业分类
耳鼻咽喉 | 34篇 |
儿科学 | 37篇 |
妇产科学 | 6篇 |
基础医学 | 88篇 |
口腔科学 | 10篇 |
临床医学 | 36篇 |
内科学 | 78篇 |
皮肤病学 | 23篇 |
神经病学 | 160篇 |
特种医学 | 37篇 |
外科学 | 50篇 |
综合类 | 7篇 |
一般理论 | 2篇 |
预防医学 | 28篇 |
眼科学 | 29篇 |
药学 | 84篇 |
肿瘤学 | 61篇 |
出版年
2023年 | 4篇 |
2022年 | 9篇 |
2021年 | 16篇 |
2020年 | 14篇 |
2019年 | 20篇 |
2018年 | 30篇 |
2017年 | 20篇 |
2016年 | 29篇 |
2015年 | 25篇 |
2014年 | 21篇 |
2013年 | 32篇 |
2012年 | 36篇 |
2011年 | 50篇 |
2010年 | 22篇 |
2009年 | 15篇 |
2008年 | 29篇 |
2007年 | 40篇 |
2006年 | 43篇 |
2005年 | 52篇 |
2004年 | 43篇 |
2003年 | 38篇 |
2002年 | 22篇 |
2001年 | 25篇 |
2000年 | 25篇 |
1999年 | 22篇 |
1998年 | 11篇 |
1997年 | 4篇 |
1996年 | 5篇 |
1995年 | 5篇 |
1993年 | 5篇 |
1992年 | 6篇 |
1991年 | 5篇 |
1990年 | 4篇 |
1989年 | 2篇 |
1988年 | 2篇 |
1986年 | 2篇 |
1985年 | 3篇 |
1984年 | 4篇 |
1983年 | 3篇 |
1982年 | 2篇 |
1980年 | 2篇 |
1979年 | 3篇 |
1978年 | 2篇 |
1977年 | 2篇 |
1974年 | 2篇 |
1973年 | 4篇 |
1972年 | 3篇 |
1971年 | 3篇 |
1970年 | 1篇 |
1908年 | 1篇 |
排序方式: 共有770条查询结果,搜索用时 15 毫秒
1.
2.
R Nair K Prabhash M Sengar A Bakshi S Gujral S Gupta P Parikh 《Annals of oncology》2007,18(7):1243-1245
BACKGROUND: Various malignancies and cytotoxic chemotherapy have been proposed to increase the risk of reactivation of tuberculosis. Available literature to support this observation is still conflicting. There is scarcity of data from countries with rampant tubercular infection, such as India, in this regard. DESIGN AND METHODS: In the present retrospective analysis, patients with high-grade non-Hodgkin's lymphoma with past history of tuberculosis and have had adequate antitubercular therapy were identified from a Lymphoma Group study. These patients were followed up during cytotoxic chemotherapy and later to assess the risk of reactivation. RESULTS: A cohort of eight patients with past history of tuberculosis was selected from 141 patients of high-grade non-Hodgkin's lymphoma. The median age was 33.5 years (range, 24-53 years). Median duration between completion of antitubercular treatment and diagnosis of lymphoma was 5 years (range, 1.5-10 years). All patients received cyclical cytotoxic chemotherapy. The median duration of follow up after completion of chemotherapy was 5 years (range, 10 months to 5 years). None of these patients developed reactivation of tuberculosis. CONCLUSION: Cyclical chemotherapy for non-Hodgkin's lymphoma does not lead to reactivation of tuberculosis. 相似文献
3.
4.
5.
Radhika S Bakshi A Rajwanshi A Nijhawan R Das A Kakkar N Joshi K Marwaha RK Rao KL 《Diagnostic cytopathology》2005,32(5):281-286
Malignant renal neoplasms are common solid tumors in pediatric oncology practice. These include the common Wilms' tumor/nephroblastoma and the uncommon neoplasms such as clear-cell sarcoma of the kidney (CCSK), rhabdoid tumor, renal-cell carcinoma, and others. The aim of this study was to describe in detail the cytopathological features of the histopathologically proven uncommon pediatric renal tumors. Aspirates from Wilms' tumor, which are mesenchyme predominant, show clusters of spindle cells associated with the matrix material. Evidence of rhabdomyoblastic differentiation may be present. CCSK, classic subtype, is characterized by round to oval cells arranged perivascularly and also in sheets and clusters intimately associated with a metachromatic matrix mucopolysaccharide material better appreciated in May-Grunwald-Giemsa (MGG)-stained smears. The cells also have more abundant cytoplasm and may show nuclear grooves. Spindle-cell pattern of CCSK is difficult to diagnose on aspiration cytology. Renal-cell carcinoma of childhood shows similar cytological features as its adult counterpart. Rhabdoid tumor of the kidney is characterized by a monomorphic population of cells with abundant cytoplasm, eccentric nuclei with prominent nucleoli. Intrarenal yolk sac tumor is a rare neoplasm and shows severely pleomorphic cells on aspiration.Awareness of these entities is important for the practicing cytopathologist. Further, non-Wilms' renal malignant neoplasms must be distinguished from the common Wilms' tumor so that appropriate chemotherapy protocols may be instituted in cases where the tumor is in an advanced stage of malignancy. 相似文献
6.
Punia RS Nanda A Bakshi A Mohan H Gupta S 《Indian journal of pathology & microbiology》2004,47(1):41-42
Diffuse lipomatosis is a rare disorder of adipose tissue occurring in young people . It has a predilection for trunk and proximal extremities where it presents as poorly circumscribed overgrowth of fatty tissue. Definite diagnosis is established by histological examination of tumor. Though it attains extensive size and has a high tendency to recur, the clinical course is benign. 相似文献
7.
Clinical-neuroimaging analysis of 12 thrombotic thrombocytopenic purpura (TTP) patients revealed a variety of brain lesions. These included reversible cerebral edema lesions with MRI features of reversible posterior leukoencephalopathy syndrome (RPLS). Most of the RPLS patients had hypertension and renal dysfunction, suggesting RPLS due to hypertensive encephalopathy. Prompt treatment usually led to neurologic recovery and disappearance of edematous lesions. Those with infarcts or hematomas had a poorer outcome. TTP should be added to the expanding spectrum of RPLS and hypertensive encephalopathy. 相似文献
8.
9.
10.
Jaimanti Bakshi Naresh K. Panda Suresh C. Sharma Ashok Gupta S. B. S. Mann 《Indian journal of otolaryngology and head and neck surgery》2005,57(2):103-107
Carcinoma of larynx is a common disease in North Indian population. It is seen commonly in smokers and alcoholics. It poses a serious health problem due to its tendency to cause airway obstruction and to make the patient aphonic if total larynxgectomy is done for curing this cancer. We conducted a retrospective analysis in 690 cases of carcinoma larynx presenting to Nehru Hospital, Postgraduate Institute of Medical Education and Research, Chandigarh. Various aspects of this disease like predisposing factors, patterns of spread, histological types, various treatment modalities, their complications and response of this disease to these therapeutic options were studied in detail. 相似文献