全文获取类型
收费全文 | 627篇 |
免费 | 26篇 |
国内免费 | 21篇 |
专业分类
儿科学 | 21篇 |
妇产科学 | 8篇 |
基础医学 | 40篇 |
口腔科学 | 5篇 |
临床医学 | 51篇 |
内科学 | 109篇 |
皮肤病学 | 8篇 |
神经病学 | 20篇 |
特种医学 | 141篇 |
外科学 | 82篇 |
综合类 | 45篇 |
预防医学 | 33篇 |
眼科学 | 13篇 |
药学 | 40篇 |
中国医学 | 1篇 |
肿瘤学 | 57篇 |
出版年
2021年 | 3篇 |
2020年 | 3篇 |
2019年 | 5篇 |
2018年 | 6篇 |
2017年 | 4篇 |
2016年 | 2篇 |
2015年 | 4篇 |
2014年 | 6篇 |
2013年 | 9篇 |
2012年 | 11篇 |
2011年 | 16篇 |
2010年 | 20篇 |
2009年 | 19篇 |
2008年 | 15篇 |
2007年 | 13篇 |
2006年 | 23篇 |
2005年 | 15篇 |
2004年 | 9篇 |
2003年 | 17篇 |
2002年 | 18篇 |
2001年 | 18篇 |
2000年 | 12篇 |
1999年 | 16篇 |
1998年 | 27篇 |
1997年 | 45篇 |
1996年 | 31篇 |
1995年 | 32篇 |
1994年 | 29篇 |
1993年 | 21篇 |
1992年 | 12篇 |
1991年 | 23篇 |
1990年 | 18篇 |
1989年 | 33篇 |
1988年 | 18篇 |
1987年 | 22篇 |
1986年 | 12篇 |
1985年 | 19篇 |
1984年 | 6篇 |
1983年 | 11篇 |
1982年 | 9篇 |
1981年 | 11篇 |
1980年 | 6篇 |
1979年 | 3篇 |
1978年 | 6篇 |
1977年 | 5篇 |
1976年 | 2篇 |
1975年 | 4篇 |
1970年 | 1篇 |
1969年 | 1篇 |
1968年 | 1篇 |
排序方式: 共有674条查询结果,搜索用时 15 毫秒
1.
2.
杨兴旺 《眼外伤职业眼病杂志》1994,16(3):202-204
采用综合治疗,抗炎,散瞳,局部治疗与全身应用免疫抑制疗法,治疗319例352眼外伤获得了满意的疗效,眼球挫伤104例,眼球穿孔伤93例,化学烧伤71例,眼炸伤46例。眼热烧伤5例,治疗包括及时清创胶粘或缝合,清除前房出血合理用皮质类固醇和免疫抑制剂等。眼球挫伤治愈率97.12%,穿透伤93.18%,热烧伤66.67%。319例眼外伤治愈率94.67%好转5.33%,并对各种治疗方法进行了讨论。 相似文献
3.
T A Splinter 《Current opinion in oncology》1991,3(2):312-319
This review addresses means for the improvement of treatment results in small cell and non-small cell lung cancer. In small cell lung cancer prognostic factors such as the distinction between classic and variant type in vivo remain an important subject for further investigations. Data concerning the schedule dependency of etoposide will lead to the investigation of new treatment regimens. The effect of warfarin is intriguing and warrants further research. Investigations of the damaging effects of prophylactic brain irradiation versus the effect on survival should be awaited before the role of prophylactic brain irradiation can be defined. The role of radiotherapy in the improvement of survival of limited-disease patients remains controversial. In non-small cell lung cancer the role of both radiotherapy and chemotherapy is still a matter of a seemingly never-ending debate. A major problem is the selection of patients. Therefore only randomized phase III trials should be performed in carefully defined subgroups of patients, based upon stage, performance status, and presence or absence of symptoms. 相似文献
4.
5.
A case of nonseminomatous testicular cancer and enlarged mediastinal lymph nodes, which were interpreted as metastases, is reported. When there was no change after two courses of chemotherapy, a mediastinoscopy was performed and the results showed sarcoidosis. 相似文献
6.
Retrorenal colon: implications for percutaneous diskectomy 总被引:1,自引:0,他引:1
It has been recommended that computed tomography (CT) with the patient prone be performed in every patient undergoing percutaneous diskectomy; this would enable detection of a retrorenal location of the colon, which could interfere with the percutaneous procedure. In this evaluation of 346 prone CT studies, only one patient (0.29%) was found to have retrorenal or retropsoas bowel that would have been perforated at diskectomy. Because of this extremely low prevalence, the performance of prone CT in every patient undergoing percutaneous lumbar diskectomy is not believed to be necessary. 相似文献
7.
8.
Rosendo A Rodriguez MD PhD Garry Cornel FRCS Lloyd Semelhago MD William M Splinter MD Nihal A Weerasena FRCS 《The Annals of thoracic surgery》1997,64(6):1820-1822
A pediatric cardiac case of transient obstruction of the superior vena cava by the venous cannula before cardiopulmonary bypass is presented. With venous obstruction and increase in central venous pressure, reduced cerebral blood flow velocities and absence of diastolic Doppler flow were detected. This was followed by regional cerebral venous oxygen desaturation and global electroencephalographic slowing. Reposition of the venous cannula led to the recovery of these physiologic indicators and a noncomplicated clinical outcome. 相似文献
9.
PL Macken FRACO FRACS CJ Pavlin FRCS R Tuli MD GE Trope PhD FRCS 《Clinical & experimental ophthalmology》1995,23(3):217-220
Background: Spherophakia is an uncommon diagnosis. This is the first case report of spherophakia evaluated by ultrasound biomicroscopy.
Methods: Ultrasound biomicroscopy is a new diagnostic technique developed by one of the authors and provides images with microscopic resolution of the anterior segment. A patient with spherophakia was evaluated by ultrasound biomicroscopy (Zeiss-Humphrey, 50MHz) before and after YAG laser iridotomy.
Results: Ultrasound biomicroscopic assessment revealed a shallow anterior chamber, a very steep anterior lens curvature, iridolenticular contact, elongated zonules, and an increased distance between the lens equator and the ciliary processes. Angle closure glaucoma was due to a pupil block mechanism. The pupil block was relieved by YAG laser iridotomy.
Conclusions: Ultrasound biomicroscopy is a useful technique to confirm the diagnosis of spherophakia. The pupil block in spherophakia is relieved by YAG laser iridotomy. 相似文献
Methods: Ultrasound biomicroscopy is a new diagnostic technique developed by one of the authors and provides images with microscopic resolution of the anterior segment. A patient with spherophakia was evaluated by ultrasound biomicroscopy (Zeiss-Humphrey, 50MHz) before and after YAG laser iridotomy.
Results: Ultrasound biomicroscopic assessment revealed a shallow anterior chamber, a very steep anterior lens curvature, iridolenticular contact, elongated zonules, and an increased distance between the lens equator and the ciliary processes. Angle closure glaucoma was due to a pupil block mechanism. The pupil block was relieved by YAG laser iridotomy.
Conclusions: Ultrasound biomicroscopy is a useful technique to confirm the diagnosis of spherophakia. The pupil block in spherophakia is relieved by YAG laser iridotomy. 相似文献
10.
Patrick L Splinter Konstantinos N Lazaridis Paul A Dawson Nicholas F LaRusso 《World journal of gastroenterology : WJG》2006,12(42)
AIM:To determine if novel bile acid transporters may be expressed in human tissues.METHODS:SLC10A1 (NTCP) was used as a probe to search the NCBI database for homology to previously uncharacterized ESTs. The homology search identified an EST (termed SLC10A4) that shares sequence identity with SLC10A1 and SLC10A2 (ASBT). We performed Northern blot analysis and RT-PCR to determine the tissue distribution of SLC10A4. SLC10A4 was cloned in frame with an epitope tag and overexpressed in CHO cells to determine cellular localization and functional analysis of bile acid uptake.RESULTS:Northern analysis revealed that SLC 10A4 mRNA is ubiquitously expressed fn human tissues with the highest levels of mRNA expression in brain,placenta, and liver. In SLC10A4-transfected CHO cells,immunoblotting analysis and immunofluorescence staining demonstrated a 49-kDa protein that is expressed at the plasma membrane and intracellular compartments.Functional analysis of SLC10A4 showed no significant taurocholate uptake in the presence of sodium when compared to untransfected CHO cells.CONCLUSION:To date, we have shown that this protein has no capacity to transport taurocholate relative to SLC1041; however, given its ubiquitous tissue distribution, it may play a more active role in transporting other endogenous organic anions. 相似文献