全文获取类型
收费全文 | 2883篇 |
免费 | 124篇 |
国内免费 | 11篇 |
专业分类
耳鼻咽喉 | 40篇 |
儿科学 | 172篇 |
妇产科学 | 41篇 |
基础医学 | 228篇 |
口腔科学 | 53篇 |
临床医学 | 193篇 |
内科学 | 786篇 |
皮肤病学 | 73篇 |
神经病学 | 86篇 |
特种医学 | 185篇 |
外国民族医学 | 1篇 |
外科学 | 457篇 |
综合类 | 51篇 |
一般理论 | 1篇 |
预防医学 | 84篇 |
眼科学 | 140篇 |
药学 | 208篇 |
中国医学 | 7篇 |
肿瘤学 | 212篇 |
出版年
2023年 | 22篇 |
2022年 | 100篇 |
2021年 | 178篇 |
2020年 | 102篇 |
2019年 | 101篇 |
2018年 | 118篇 |
2017年 | 105篇 |
2016年 | 92篇 |
2015年 | 105篇 |
2014年 | 171篇 |
2013年 | 178篇 |
2012年 | 252篇 |
2011年 | 272篇 |
2010年 | 109篇 |
2009年 | 86篇 |
2008年 | 140篇 |
2007年 | 132篇 |
2006年 | 114篇 |
2005年 | 105篇 |
2004年 | 71篇 |
2003年 | 54篇 |
2002年 | 38篇 |
2001年 | 21篇 |
2000年 | 30篇 |
1999年 | 13篇 |
1998年 | 12篇 |
1997年 | 7篇 |
1996年 | 5篇 |
1995年 | 6篇 |
1992年 | 26篇 |
1991年 | 17篇 |
1990年 | 20篇 |
1989年 | 24篇 |
1988年 | 28篇 |
1987年 | 18篇 |
1986年 | 13篇 |
1985年 | 12篇 |
1984年 | 9篇 |
1983年 | 5篇 |
1982年 | 5篇 |
1981年 | 7篇 |
1979年 | 7篇 |
1977年 | 5篇 |
1976年 | 5篇 |
1974年 | 9篇 |
1973年 | 6篇 |
1972年 | 6篇 |
1970年 | 5篇 |
1968年 | 8篇 |
1965年 | 8篇 |
排序方式: 共有3018条查询结果,搜索用时 31 毫秒
1.
Uday Yanamandra Prateek Deo Kamal Kant Sahu Ram Vasudevan Nampoothiri Nalini Gupta Anusree Prabhakaran Deb Prasad Dhibhar Alka Khadwal Gaurav Prakash Man Upadesh Singh Sachdeva Deepesh Lad Neelam Varma Subhash Varma Pankaj Malhotra 《Clinical Lymphoma, Myeloma & Leukemia》2019,19(3):183-189.e1
Background
Multiple myeloma (MM) is a hematologic malignancy of plasma cell origin. MM primarily affects bone marrow, but extramedullary sites can also be involved. Myelomatous pleural effusion (MPE) is an atypical and rare complication of MM. We aimed to systematically study the incidence and clinicopathologic profile of patients with MPE in a real-world setting.Patients and Methods
In this retrospective study, 415 consecutive patients with MM managed at a tertiary care center in North India during a study period of January 1, 2010 to December 31, 2015 were evaluated for MPE. The patients with MPE were analyzed for their clinical profile, diagnosis, treatment, and outcomes.Results
Of these 415 patients, 11 (2.65%) patients had MPE. The median age of the study population was 50 years with male preponderance. The majority of these patients had immunoglobin (Ig)G Kappa disease. All patients had higher than International Staging System stage I disease. MPE was a presenting feature at MM diagnosis in 45.45% (n = 5) of the patients, whereas the rest developed MPE during follow-up. MPE presented predominantly (81.8%) as a unilateral effusion. Concurrent extramedullary involvement at other site was seen in 45.45% (n = 5), with 3 (27%) patients having concurrent myelomatous ascites. Six of these were managed aggressively, whereas 5 patients opted for palliation. The outcomes were dismal (90.9% mortality), with a median survival of 2.47 months.Conclusion
MPE is a rare entity, and positive outcomes of therapy remain low with dismal prognosis. 相似文献2.
Umar Nadia K. Badshah Maaz B. Sandrasegaran Kumar Ghabril Marwan Agarwal Saurabh Tann Mark Lacerda Marco Kwo Paul Y. 《Digestive diseases and sciences》2015,60(7):2196-2200
Digestive Diseases and Sciences - To determine whether the presence of portal vein thrombosis (PVT) where venous flow within the liver may be altered may delay the diagnosis of HCC and be... 相似文献
3.
4.
5.
Nitin Gupta Saurabh Varshney S. S. Bist Pratima Gupta Rajat Bhatia 《Indian journal of otolaryngology and head and neck surgery》2007,59(4):309-312
Retropharyngeal abscesses were fairly common in preantibiotic era but the advent of antibiotics has reduced the overall incidence
of these abscesses. They still continue to occur specially in developing world and carry significant morbidity and even mortality
if not managed properly. The prevalence of this abscess in the young children pose a bigger challenge, as the examination
of oral cavity is difficult. Emphasis is placed on the age, sex, type, and duration of symptoms, bacteriology, methodology
of diagnosis, therapy and complications. With proper antibiotic cover and surgical management, majority of patients today
survive without major residual squeal. Hereby we present a series of 15 cases of retropharyngeal abscess. 相似文献
6.
7.
A Surowiec P N Shrivastava M Astrahan Z Petrovich 《International journal of hyperthermia》1992,8(6):795-807
A muscle-stimulating material made of polyacrylamide gel (PAG) for testing various kinds of hyperthermia applicators was investigated. The permittivity and conductivity dispersion of PAG, as well as an internal wavelength and penetration depth, were in good agreement with those of actual muscle at frequencies between 500 MHz and 3 GHz. A single formula for PAG covering three ISM bands, most commonly used for hyperthermia, 433, 915 and 2450 MHz, is presented. The physical properties of the PAG phantom allow any desired form or shape to be moulded, including shapes conforming to the actual geometry of an interstitial or intracavitary applicator. Utilization of a multilayer phantom makes possible the generation of experimental three-dimensional specific absorption rate (SAR) distributions composed from several two-dimensional SAR images at different depths or radial distances from the applicator. Spatial resolution of 1 mm can be achieved. The two-dimensional SAR distributions at different depth values for commercial superficial applicator, an interstitial antenna and a new oesophageal applicator are presented. 相似文献
8.
K A Dinshaw S C Pande S K Shrivastava M A Gonsalves S H Advani R Gopal S S Shrikhande L J Desouza P Jagannath P B Desai 《Journal of surgical oncology》1992,49(1):39-44
A retrospective analysis of 328 cases of Hodgkin's Disease (HD) subjected to a staging laparotomy at the Tata Memorial Hospital, Bombay, India, from 1974 to 1986 was undertaken to assess its relevance to our setup. Eighty percent of the patients were from clinical stages (CS) I and II, 38% with lymphocyte predominance (LP), and 41% with mixed cellularity (MC) histologies. Staging laparotomy was positive in 60% cases overall, including 50% from CS IA and IIA, 68% from CS IB and IIB, and 53% and 67%, respectively, from LP and MC histologies. Splenic involvement was seen in 54% cases. Operative complications were encountered in 2% of cases and deaths in two cases only. In view of the high propensity for abdominal spread, only selected CS IA and IIA cases would merit a staging laparotomy within which, nearly 50% cases with a negative yield could be offered radical segmental irradiation alone for cure. The majority of our patients would, however, require combination therapy. 相似文献
9.
V Radha Krishna J S Tendulkar V B Shrivastava S K Srivastava 《Annals of tropical medicine and parasitology》1988,82(1):49-52
A method is described for successfully establishing caecal amoebiasis in hamsters which were not fed and which were pretreated with 1 ml of magnesium sulphate every 24 hours for three days and then given 12 x 10(5) trophozoites of the HM-1 axenic strain or 18 x 10(5) trophozoites of the HK-9 axenic strain of Entamoeba histolytica by the oral route. All the animals developed diarrhoea within 24 hours of infection. When the animals were killed on the fifth day after infection the caecum was swollen and fused. Large macroscopic ulcers full of pus could be seen in the caecum. None of the control animals showed any of the changes mentioned above. 相似文献
10.