全文获取类型
收费全文 | 785篇 |
免费 | 30篇 |
国内免费 | 2篇 |
专业分类
耳鼻咽喉 | 3篇 |
儿科学 | 48篇 |
妇产科学 | 3篇 |
基础医学 | 66篇 |
口腔科学 | 19篇 |
临床医学 | 37篇 |
内科学 | 92篇 |
皮肤病学 | 36篇 |
神经病学 | 10篇 |
特种医学 | 53篇 |
外科学 | 96篇 |
综合类 | 278篇 |
预防医学 | 28篇 |
眼科学 | 2篇 |
药学 | 21篇 |
1篇 | |
肿瘤学 | 24篇 |
出版年
2022年 | 4篇 |
2021年 | 9篇 |
2020年 | 9篇 |
2019年 | 5篇 |
2018年 | 8篇 |
2017年 | 5篇 |
2016年 | 6篇 |
2015年 | 27篇 |
2014年 | 22篇 |
2013年 | 24篇 |
2012年 | 25篇 |
2011年 | 26篇 |
2010年 | 63篇 |
2009年 | 47篇 |
2008年 | 46篇 |
2007年 | 43篇 |
2006年 | 44篇 |
2005年 | 25篇 |
2004年 | 44篇 |
2003年 | 17篇 |
2002年 | 25篇 |
2001年 | 25篇 |
2000年 | 18篇 |
1999年 | 21篇 |
1998年 | 27篇 |
1997年 | 31篇 |
1996年 | 28篇 |
1995年 | 19篇 |
1994年 | 21篇 |
1993年 | 8篇 |
1992年 | 8篇 |
1990年 | 2篇 |
1989年 | 6篇 |
1988年 | 8篇 |
1987年 | 6篇 |
1986年 | 8篇 |
1985年 | 5篇 |
1984年 | 5篇 |
1983年 | 2篇 |
1982年 | 6篇 |
1981年 | 4篇 |
1980年 | 2篇 |
1979年 | 2篇 |
1978年 | 6篇 |
1977年 | 2篇 |
1976年 | 4篇 |
1973年 | 4篇 |
1972年 | 2篇 |
1970年 | 2篇 |
1961年 | 2篇 |
排序方式: 共有817条查询结果,搜索用时 0 毫秒
61.
62.
63.
64.
MUAMMER SEYHAN BAAK KANDI COKUN HÜLYA SALAM HAMDI ÖZCAN YELDA KARINCAOLU 《Pediatrics international》2006,48(6):525-530
BACKGROUND: The present study was aimed to define the gender ratio, familial occurrence, age of onset, precipitating factors, clinical types, nail and joint involvement of psoriasis in childhood and adolescence in Turkey. METHODS: A total of 61 children with psoriasis under 18 years old were evaluated retrospectively, for age, gender, age of disease onset, family history, concomitant disease, the clinical type of psoriasis, clinical localization, nail and joint involvement and treatment modalities. RESULTS: Of the patients, 23 (37.70%) were boys and 38 (62.30%) were girls. Mean age was 9.28 +/- 4.02 years in girls and 11.18 +/- 3.85 years in boys (9.96 +/- 4.03 years in all children). Mean age at the onset of the disease was 6.81 +/- 4.11 years in girls and 7.03 +/- 4.28 years in boys (6.89 +/- 4.14 years in all patients). In 14 (23%) cases, a positive family history was detected. The most frequent probable triggering factors were upper respiratory tract infections (14.8%) and positive throat culture for A group ss-hemolytic streptococcus (21.3%). Frequency of emotional stress and psychiatric morbidity were 54% and 9.8%, respectively. The most frequent localizations at onset were trunk (44.3%), extremities (54.0%), and scalp (36.0%). Three children (4.9%) had a history of dissemination from psoriatic diaper rash. In total, 51 (83.6%) patients presented with psoriasis vulgaris, eight (13.1%) with generalized pustular psoriasis, and the remaining two (3.3%) with erythrodermic psoriasis. CONCLUSION: The incidence of psoriasis among dermatological patients in childhood and adolescence was 3.8%. The disease tends to appear earlier in girls than boys. The authors suggested that stress and upper respiratory infections are the most important triggering factors in childhood and adolescence psoriasis. 相似文献
65.
66.
Background: Thirty six cases of lenticular nucleus drop following phacoemulsification and 43 cases of posterior dislocation of intraocular lens (IOL) inclusive of two paediatric cases were managed by a modified vitrectomy procedure without using perfluorocarbon liquid (PFCL). 相似文献
67.
Chitra Chowdhury Prof. Subimal Roy Nandita Gupta N Kochupillai AK Banerji 《Journal of neuro-oncology》1986,4(2):169-174
A case of a functioning invasive pituitary oncocytoma in a 50-year-old man is reported. The serum prolactin was increased and immunocytochemical staining was positive for prolactin. In addition to numerous mitochondria within the neoplastic cells, structurally abnormal mitochondria with crystalline inclusions were also present. Another interesting feature was the presence of about 10 to 15% of non-oncocytic cells which showed prominent RER and Golgi apparatus as found in functioning pituitary adenomas. It is likely that these secretorily active cells were responsible for the functional activity of the tumour. 相似文献
68.
69.
70.
Goldberg HI; Grossman RI; Gomori JM; Asbury AK; Bilaniuk LT; Zimmerman RA 《Radiology》1986,158(1):157-161
Two men underwent high-resolution magnetic resonance (MR) imaging of the internal carotid artery (ICA) 12 and 16 days after spontaneous dissection of this vessel. One underwent follow-up MR imaging 7 weeks later. T1-weighted images were obtained in both cases, and T2-weighted images were obtained in one patient. In both cases, the MR findings corresponded to the angiographic abnormalities. On both the T1- and T2-weighted images, there was a hyperintense lesion expanding the wall and narrowing the lumen of the ICAs. Follow-up MR imaging showed complete resolution of the mural lesion. Axial images best demonstrated the anatomic and MR signal alterations. The hyperintensity of the lesion on both T1- and T2-weighted images indicated a short T1 and a long T2 as expected in a subacute hematoma. High-resolution MR imaging, therefore, can specifically demonstrate a thrombosed carotid dissection noninvasively at least as early as 12 days. The potential to diagnose carotid dissection in the acute phase using high-field-strength MR imaging and its importance for the prevention of embolic strokes are also discussed. 相似文献